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Search Help
Get the most out of Google Scholar with some helpful tips on searches, email alerts, citation export, and more.
Finding recent papers
Your search results are normally sorted by relevance, not by date. To find newer articles, try the following options in the left sidebar:
- click "Since Year" to show only recently published papers, sorted by relevance;
- click "Sort by date" to show just the new additions, sorted by date;
- click the envelope icon to have new results periodically delivered by email.
Locating the full text of an article
Abstracts are freely available for most of the articles. Alas, reading the entire article may require a subscription. Here're a few things to try:
- click a library link, e.g., "FindIt@Harvard", to the right of the search result;
- click a link labeled [PDF] to the right of the search result;
- click "All versions" under the search result and check out the alternative sources;
- click "Related articles" or "Cited by" under the search result to explore similar articles.
If you're affiliated with a university, but don't see links such as "FindIt@Harvard", please check with your local library about the best way to access their online subscriptions. You may need to do search from a computer on campus, or to configure your browser to use a library proxy.
Getting better answers
If you're new to the subject, it may be helpful to pick up the terminology from secondary sources. E.g., a Wikipedia article for "overweight" might suggest a Scholar search for "pediatric hyperalimentation".
If the search results are too specific for your needs, check out what they're citing in their "References" sections. Referenced works are often more general in nature.
Similarly, if the search results are too basic for you, click "Cited by" to see newer papers that referenced them. These newer papers will often be more specific.
Explore! There's rarely a single answer to a research question. Click "Related articles" or "Cited by" to see closely related work, or search for author's name and see what else they have written.
Searching Google Scholar
Use the "author:" operator, e.g., author:"d knuth" or author:"donald e knuth".
Put the paper's title in quotations: "A History of the China Sea".
You'll often get better results if you search only recent articles, but still sort them by relevance, not by date. E.g., click "Since 2018" in the left sidebar of the search results page.
To see the absolutely newest articles first, click "Sort by date" in the sidebar. If you use this feature a lot, you may also find it useful to setup email alerts to have new results automatically sent to you.
Note: On smaller screens that don't show the sidebar, these options are available in the dropdown menu labelled "Year" right below the search button.
Select the "Case law" option on the homepage or in the side drawer on the search results page.
It finds documents similar to the given search result.
It's in the side drawer. The advanced search window lets you search in the author, title, and publication fields, as well as limit your search results by date.
Select the "Case law" option and do a keyword search over all jurisdictions. Then, click the "Select courts" link in the left sidebar on the search results page.
Tip: To quickly search a frequently used selection of courts, bookmark a search results page with the desired selection.
Access to articles
For each Scholar search result, we try to find a version of the article that you can read. These access links are labelled [PDF] or [HTML] and appear to the right of the search result. For example:
A paper that you need to read
Access links cover a wide variety of ways in which articles may be available to you - articles that your library subscribes to, open access articles, free-to-read articles from publishers, preprints, articles in repositories, etc.
When you are on a campus network, access links automatically include your library subscriptions and direct you to subscribed versions of articles. On-campus access links cover subscriptions from primary publishers as well as aggregators.
Off-campus access
Off-campus access links let you take your library subscriptions with you when you are at home or traveling. You can read subscribed articles when you are off-campus just as easily as when you are on-campus. Off-campus access links work by recording your subscriptions when you visit Scholar while on-campus, and looking up the recorded subscriptions later when you are off-campus.
We use the recorded subscriptions to provide you with the same subscribed access links as you see on campus. We also indicate your subscription access to participating publishers so that they can allow you to read the full-text of these articles without logging in or using a proxy. The recorded subscription information expires after 30 days and is automatically deleted.
In addition to Google Scholar search results, off-campus access links can also appear on articles from publishers participating in the off-campus subscription access program. Look for links labeled [PDF] or [HTML] on the right hand side of article pages.
Anne Author , John Doe , Jane Smith , Someone Else
In this fascinating paper, we investigate various topics that would be of interest to you. We also describe new methods relevant to your project, and attempt to address several questions which you would also like to know the answer to. Lastly, we analyze …
You can disable off-campus access links on the Scholar settings page . Disabling off-campus access links will turn off recording of your library subscriptions. It will also turn off indicating subscription access to participating publishers. Once off-campus access links are disabled, you may need to identify and configure an alternate mechanism (e.g., an institutional proxy or VPN) to access your library subscriptions while off-campus.
Email Alerts
Do a search for the topic of interest, e.g., "M Theory"; click the envelope icon in the sidebar of the search results page; enter your email address, and click "Create alert". We'll then periodically email you newly published papers that match your search criteria.
No, you can enter any email address of your choice. If the email address isn't a Google account or doesn't match your Google account, then we'll email you a verification link, which you'll need to click to start receiving alerts.
This works best if you create a public profile , which is free and quick to do. Once you get to the homepage with your photo, click "Follow" next to your name, select "New citations to my articles", and click "Done". We will then email you when we find new articles that cite yours.
Search for the title of your paper, e.g., "Anti de Sitter space and holography"; click on the "Cited by" link at the bottom of the search result; and then click on the envelope icon in the left sidebar of the search results page.
First, do a search for your colleague's name, and see if they have a Scholar profile. If they do, click on it, click the "Follow" button next to their name, select "New articles by this author", and click "Done".
If they don't have a profile, do a search by author, e.g., [author:s-hawking], and click on the mighty envelope in the left sidebar of the search results page. If you find that several different people share the same name, you may need to add co-author names or topical keywords to limit results to the author you wish to follow.
We send the alerts right after we add new papers to Google Scholar. This usually happens several times a week, except that our search robots meticulously observe holidays.
There's a link to cancel the alert at the bottom of every notification email.
If you created alerts using a Google account, you can manage them all here . If you're not using a Google account, you'll need to unsubscribe from the individual alerts and subscribe to the new ones.
Google Scholar library
Google Scholar library is your personal collection of articles. You can save articles right off the search page, organize them by adding labels, and use the power of Scholar search to quickly find just the one you want - at any time and from anywhere. You decide what goes into your library, and we’ll keep the links up to date.
You get all the goodies that come with Scholar search results - links to PDF and to your university's subscriptions, formatted citations, citing articles, and more!
Library help
Find the article you want to add in Google Scholar and click the “Save” button under the search result.
Click “My library” at the top of the page or in the side drawer to view all articles in your library. To search the full text of these articles, enter your query as usual in the search box.
Find the article you want to remove, and then click the “Delete” button under it.
- To add a label to an article, find the article in your library, click the “Label” button under it, select the label you want to apply, and click “Done”.
- To view all the articles with a specific label, click the label name in the left sidebar of your library page.
- To remove a label from an article, click the “Label” button under it, deselect the label you want to remove, and click “Done”.
- To add, edit, or delete labels, click “Manage labels” in the left column of your library page.
Only you can see the articles in your library. If you create a Scholar profile and make it public, then the articles in your public profile (and only those articles) will be visible to everyone.
Your profile contains all the articles you have written yourself. It’s a way to present your work to others, as well as to keep track of citations to it. Your library is a way to organize the articles that you’d like to read or cite, not necessarily the ones you’ve written.
Citation Export
Click the "Cite" button under the search result and then select your bibliography manager at the bottom of the popup. We currently support BibTeX, EndNote, RefMan, and RefWorks.
Err, no, please respect our robots.txt when you access Google Scholar using automated software. As the wearers of crawler's shoes and webmaster's hat, we cannot recommend adherence to web standards highly enough.
Sorry, we're unable to provide bulk access. You'll need to make an arrangement directly with the source of the data you're interested in. Keep in mind that a lot of the records in Google Scholar come from commercial subscription services.
Sorry, we can only show up to 1,000 results for any particular search query. Try a different query to get more results.
Content Coverage
Google Scholar includes journal and conference papers, theses and dissertations, academic books, pre-prints, abstracts, technical reports and other scholarly literature from all broad areas of research. You'll find works from a wide variety of academic publishers, professional societies and university repositories, as well as scholarly articles available anywhere across the web. Google Scholar also includes court opinions and patents.
We index research articles and abstracts from most major academic publishers and repositories worldwide, including both free and subscription sources. To check current coverage of a specific source in Google Scholar, search for a sample of their article titles in quotes.
While we try to be comprehensive, it isn't possible to guarantee uninterrupted coverage of any particular source. We index articles from sources all over the web and link to these websites in our search results. If one of these websites becomes unavailable to our search robots or to a large number of web users, we have to remove it from Google Scholar until it becomes available again.
Our meticulous search robots generally try to index every paper from every website they visit, including most major sources and also many lesser known ones.
That said, Google Scholar is primarily a search of academic papers. Shorter articles, such as book reviews, news sections, editorials, announcements and letters, may or may not be included. Untitled documents and documents without authors are usually not included. Website URLs that aren't available to our search robots or to the majority of web users are, obviously, not included either. Nor do we include websites that require you to sign up for an account, install a browser plugin, watch four colorful ads, and turn around three times and say coo-coo before you can read the listing of titles scanned at 10 DPI... You get the idea, we cover academic papers from sensible websites.
That's usually because we index many of these papers from other websites, such as the websites of their primary publishers. The "site:" operator currently only searches the primary version of each paper.
It could also be that the papers are located on examplejournals.gov, not on example.gov. Please make sure you're searching for the "right" website.
That said, the best way to check coverage of a specific source is to search for a sample of their papers using the title of the paper.
Ahem, we index papers, not journals. You should also ask about our coverage of universities, research groups, proteins, seminal breakthroughs, and other dimensions that are of interest to users. All such questions are best answered by searching for a statistical sample of papers that has the property of interest - journal, author, protein, etc. Many coverage comparisons are available if you search for [allintitle:"google scholar"], but some of them are more statistically valid than others.
Currently, Google Scholar allows you to search and read published opinions of US state appellate and supreme court cases since 1950, US federal district, appellate, tax and bankruptcy courts since 1923 and US Supreme Court cases since 1791. In addition, it includes citations for cases cited by indexed opinions or journal articles which allows you to find influential cases (usually older or international) which are not yet online or publicly available.
Legal opinions in Google Scholar are provided for informational purposes only and should not be relied on as a substitute for legal advice from a licensed lawyer. Google does not warrant that the information is complete or accurate.
We normally add new papers several times a week. However, updates to existing records take 6-9 months to a year or longer, because in order to update our records, we need to first recrawl them from the source website. For many larger websites, the speed at which we can update their records is limited by the crawl rate that they allow.
Inclusion and Corrections
We apologize, and we assure you the error was unintentional. Automated extraction of information from articles in diverse fields can be tricky, so an error sometimes sneaks through.
Please write to the owner of the website where the erroneous search result is coming from, and encourage them to provide correct bibliographic data to us, as described in the technical guidelines . Once the data is corrected on their website, it usually takes 6-9 months to a year or longer for it to be updated in Google Scholar. We appreciate your help and your patience.
If you can't find your papers when you search for them by title and by author, please refer your publisher to our technical guidelines .
You can also deposit your papers into your institutional repository or put their PDF versions on your personal website, but please follow your publisher's requirements when you do so. See our technical guidelines for more details on the inclusion process.
We normally add new papers several times a week; however, it might take us some time to crawl larger websites, and corrections to already included papers can take 6-9 months to a year or longer.
Google Scholar generally reflects the state of the web as it is currently visible to our search robots and to the majority of users. When you're searching for relevant papers to read, you wouldn't want it any other way!
If your citation counts have gone down, chances are that either your paper or papers that cite it have either disappeared from the web entirely, or have become unavailable to our search robots, or, perhaps, have been reformatted in a way that made it difficult for our automated software to identify their bibliographic data and references. If you wish to correct this, you'll need to identify the specific documents with indexing problems and ask your publisher to fix them. Please refer to the technical guidelines .
Please do let us know . Please include the URL for the opinion, the corrected information and a source where we can verify the correction.
We're only able to make corrections to court opinions that are hosted on our own website. For corrections to academic papers, books, dissertations and other third-party material, click on the search result in question and contact the owner of the website where the document came from. For corrections to books from Google Book Search, click on the book's title and locate the link to provide feedback at the bottom of the book's page.
General Questions
These are articles which other scholarly articles have referred to, but which we haven't found online. To exclude them from your search results, uncheck the "include citations" box on the left sidebar.
First, click on links labeled [PDF] or [HTML] to the right of the search result's title. Also, check out the "All versions" link at the bottom of the search result.
Second, if you're affiliated with a university, using a computer on campus will often let you access your library's online subscriptions. Look for links labeled with your library's name to the right of the search result's title. Also, see if there's a link to the full text on the publisher's page with the abstract.
Keep in mind that final published versions are often only available to subscribers, and that some articles are not available online at all. Good luck!
Technically, your web browser remembers your settings in a "cookie" on your computer's disk, and sends this cookie to our website along with every search. Check that your browser isn't configured to discard our cookies. Also, check if disabling various proxies or overly helpful privacy settings does the trick. Either way, your settings are stored on your computer, not on our servers, so a long hard look at your browser's preferences or internet options should help cure the machine's forgetfulness.
Not even close. That phrase is our acknowledgement that much of scholarly research involves building on what others have already discovered. It's taken from Sir Isaac Newton's famous quote, "If I have seen further, it is by standing on the shoulders of giants."
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Scopus Search
Scopus quickly delivers the information you're looking for from over 92m records. Updated daily, Scopus features state-of-the-art search tools and filters to empower research efficiency.
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Increase research efficiency
Having access to comprehensive content and high-quality data is only effective if you can easily find the information you need. Uncovering trends, discovering sources and potential collaborators, and building deeper insights require effective search tools that can identify the right results.
Identify trends for key topics
Scopus’ literature search is built to distill massive amounts of information down to the most relevant documents and information in less time.
With Scopus you can search and filter results in the following ways:
Document search : Search directly from the homepage and use detailed search options to ensure you find the document(s) you want
Author search : Search for a specific author by name or by Open Research and Contributor Identifier ID (ORCID)
Affiliation search : Identify and assess an affiliation’s scholarly output, collaborating institutions and top authors
Advanced search : Narrow the scope of your search using field codes, proximity operators and/or Boolean operators
Refine results : Scopus makes it easy to refine your results list to specific categories of documents
Language interface : The Scopus interface is available in Chinese and Japanese; content is not localized, but you can switch the interface to one of these language options (and switch back to English, the default language) at the bottom of any Scopus page
Quick reference guide
Learn how to easily start your search from the homepage and use all the features in Scopus with this handy Quick Reference Guide.
Download the guide opens in new tab/window .
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Learn how Scopus can help your organization achieve its goals.
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Related links
Reference management. Clean and simple.
Academic Databases
![where to find scientific research papers ERIC research database: complete tutorial](https://cdn.paperpile.com/guides/img/eric-tutorial-illustr-400x400.png)
ERIC research database: complete tutorial
The ERIC database is the premier education literature database for scholarly research. This guide covers search types and strategies, filters, and full text options.
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How to efficiently search online databases for academic research
Academic research isn't difficult if you know where and how to search for scholarly articles and research papers. Here's how to do it.
![where to find scientific research papers How to use Google scholar: the ultimate guide](https://cdn.paperpile.com/guides/img/google-scholar-guide-illust-400x400.png)
How to use Google Scholar: the ultimate guide
Google Scholar is the number one academic search engine. Our detailed guide covers best practices for basic and advanced search strategies in Google Scholar.
![where to find scientific research papers PubMed: the ultimate guide](https://cdn.paperpile.com/guides/img/pubmed-ultimate-guide-400x400.png)
How to use PubMed: the ultimate guide
PubMed is the most popular search engine for biomedical sciences. Learn how to use PubMed, basic and advanced search strategies, and about its limitations and alternatives in this ultimate guide.
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Is Google Scholar a database or search engine? [Update 2024]
Google Scholar is the number one free resource to discover scientific literature, but is it an academic database or a search engine?
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The best academic research databases [Update 2024]
Your research is stuck and you need to find new sources? Take a look at our compilation of academic research databases: Scopus, Web of Science, PubMed, ERIC, JSTOR, DOAJ, Science Direct, and IEEE Xplore.
![where to find scientific research papers academic search engines](https://cdn.paperpile.com/guides/img/academic-search-engines-illust-400x400.png)
The best academic search engines [Update 2024]
Your research is stuck, and you need to find new sources. Take a look at our compilation of free academic search engines: ✓ Google Scholar ✓ BASE ✓ CORE ✓ Science.gov
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The best research databases for computer science [Update 2024]
The top 4 research databases specifically dedicated to computer science: ✓ ACM Digital Library ✓ IEEE Xplore ✓ dbpl ✓ Springer LNCS
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The best research databases for healthcare and medicine [Update 2024]
We have compiled the top list of research databases for healthcare, medicine, and biomedical research: PubMed, EMBASE, PMC, and Cochrane Library.
Bibliometrics
![where to find scientific research papers h-index illustration for Google Scholar](https://cdn.paperpile.com/guides/img/google-scholar-h-index-illustration-400x400.png)
Learn how to calculate your h-index on Google Scholar
Learn how to calculate your h-index using Google Scholar online for free, and which tools to use for a detailed analysis.
![where to find scientific research papers H-index: measured with Scopus](https://cdn.paperpile.com/guides/img/scopus-h-index-400x400.png)
Learn how to calculate your h-index using Scopus [3 steps]
Learn how to assess your h-index on Scopus in 3 easy steps.
![where to find scientific research papers h-index illustration for Web of Science](https://cdn.paperpile.com/guides/img/web-of-science-h-index-400x400.png)
Learn how to calculate your h-index using Web of Science
Learn how to calculate your h-index using Web of Science in 3 easy steps.
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The ultimate how-to-guide on the h-index
Learn what an h-index is, how to calculate it, and why it is important to know about it for your career as a scientist.
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What is a good h-index? [with examples]
Curious to know what a good h-index is? Read this guide to learn when an h-index is considered good.
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What is a good impact factor?
Do you want to find out what a good impact factor is? Read this guide to learn what an impact factor is, how it is calculated, and what impact factor is considered good.
Credible Sources
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Can a blog be a credible source? [Update 2024]
You want to add a blog post to your research paper? In general, blogs are not considered to be credible sources: ➜ check out these reasons to learn more about it.
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How can I find credible sources? [7 tips]
Sometimes it is hard to determine whether a source is credible or not. Read our guide to help you find credible sources.
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Is Wikipedia a credible source?
We all ❤ Wikipedia, but can you cite it in your research paper? No. Wikipedia is not a credible source, and here is why you should only use it for preliminary research.
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What are credible sources?
Credible sources are sources that are trustworthy and can be used as references in your academic papers. This guide will help you identify and evaluate sources for their credibility.
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What are predatory journals?
This day and age, you have to be careful where you submit your work for publication. This article helps you spot a predatory journal and has tips and tricks on what to do if you accidentally submitted to one.
Primary and Secondary Sources
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Interviews: are they a primary source?
Interviews can add tremendously to your research project. Read on to quickly learn when an interview is considered a primary source.
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Is a documentary a secondary source? [with examples]
You are not sure if a documentary is a secondary source? We show you when and why is a documentary either a secondary or a tertiary source.
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Is a letter a primary source?
Letters are frequently used in historical research. Read on to see when a letter qualifies as a primary source.
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Is a map a primary source? [with examples]
Are you not sure if a map is a primary source? This guide will show you when and why a map is a primary or a secondary source.
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Is a painting a primary source? [with examples]
Are you unsure if a painting is a primary source? This guide will show you when and why a painting is either a primary or a secondary source.
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How to Find Sources | Scholarly Articles, Books, Etc.
Published on June 13, 2022 by Eoghan Ryan . Revised on May 31, 2023.
It’s important to know how to find relevant sources when writing a research paper , literature review , or systematic review .
The types of sources you need will depend on the stage you are at in the research process , but all sources that you use should be credible , up to date, and relevant to your research topic.
There are three main places to look for sources to use in your research:
Research databases
- Your institution’s library
- Other online resources
Table of contents
Library resources, other online sources, other interesting articles, frequently asked questions about finding sources.
You can search for scholarly sources online using databases and search engines like Google Scholar . These provide a range of search functions that can help you to find the most relevant sources.
If you are searching for a specific article or book, include the title or the author’s name. Alternatively, if you’re just looking for sources related to your research problem , you can search using keywords. In this case, it’s important to have a clear understanding of the scope of your project and of the most relevant keywords.
Databases can be general (interdisciplinary) or subject-specific.
- You can use subject-specific databases to ensure that the results are relevant to your field.
- When using a general database or search engine, you can still filter results by selecting specific subjects or disciplines.
Example: JSTOR discipline search filter
![where to find scientific research papers Filtering by discipline](https://www.scribbr.com/wp-content/uploads/2022/06/filtering-by-discipline.png)
Check the table below to find a database that’s relevant to your research.
Google Scholar
To get started, you might also try Google Scholar , an academic search engine that can help you find relevant books and articles. Its “Cited by” function lets you see the number of times a source has been cited. This can tell you something about a source’s credibility and importance to the field.
Example: Google Scholar “Cited by” function
![where to find scientific research papers Google Scholar cited by function](https://www.scribbr.com/wp-content/uploads/2022/06/google-scholar-cited-by-function-1024x290.png)
Boolean operators
Boolean operators can also help to narrow or expand your search.
Boolean operators are words and symbols like AND , OR , and NOT that you can use to include or exclude keywords to refine your results. For example, a search for “Nietzsche NOT nihilism” will provide results that include the word “Nietzsche” but exclude results that contain the word “nihilism.”
Many databases and search engines have an advanced search function that allows you to refine results in a similar way without typing the Boolean operators manually.
Example: Project Muse advanced search
![where to find scientific research papers Project Muse advanced search](https://www.scribbr.com/wp-content/uploads/2022/06/project-muse-advanced-search.png)
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You can find helpful print sources in your institution’s library. These include:
- Journal articles
- Encyclopedias
- Newspapers and magazines
Make sure that the sources you consult are appropriate to your research.
You can find these sources using your institution’s library database. This will allow you to explore the library’s catalog and to search relevant keywords. You can refine your results using Boolean operators .
Once you have found a relevant print source in the library:
- Consider what books are beside it. This can be a great way to find related sources, especially when you’ve found a secondary or tertiary source instead of a primary source .
- Consult the index and bibliography to find the bibliographic information of other relevant sources.
You can consult popular online sources to learn more about your topic. These include:
- Crowdsourced encyclopedias like Wikipedia
You can find these sources using search engines. To refine your search, use Boolean operators in combination with relevant keywords.
However, exercise caution when using online sources. Consider what kinds of sources are appropriate for your research and make sure the sites are credible .
Look for sites with trusted domain extensions:
- URLs that end with .edu are educational resources.
- URLs that end with .gov are government-related resources.
- DOIs often indicate that an article is published in a peer-reviewed , scientific article.
Other sites can still be used, but you should evaluate them carefully and consider alternatives.
If you want to know more about ChatGPT, AI tools , citation , and plagiarism , make sure to check out some of our other articles with explanations and examples.
- ChatGPT vs human editor
- ChatGPT citations
- Is ChatGPT trustworthy?
- Using ChatGPT for your studies
- What is ChatGPT?
- Chicago style
- Paraphrasing
Plagiarism
- Types of plagiarism
- Self-plagiarism
- Avoiding plagiarism
- Academic integrity
- Consequences of plagiarism
- Common knowledge
Prevent plagiarism. Run a free check.
You can find sources online using databases and search engines like Google Scholar . Use Boolean operators or advanced search functions to narrow or expand your search.
For print sources, you can use your institution’s library database. This will allow you to explore the library’s catalog and to search relevant keywords.
It is important to find credible sources and use those that you can be sure are sufficiently scholarly .
- Consult your institute’s library to find out what books, journals, research databases, and other types of sources they provide access to.
- Look for books published by respected academic publishing houses and university presses, as these are typically considered trustworthy sources.
- Look for journals that use a peer review process. This means that experts in the field assess the quality and credibility of an article before it is published.
When searching for sources in databases, think of specific keywords that are relevant to your topic , and consider variations on them or synonyms that might be relevant.
Once you have a clear idea of your research parameters and key terms, choose a database that is relevant to your research (e.g., Medline, JSTOR, Project MUSE).
Find out if the database has a “subject search” option. This can help to refine your search. Use Boolean operators to combine your keywords, exclude specific search terms, and search exact phrases to find the most relevant sources.
There are many types of sources commonly used in research. These include:
You’ll likely use a variety of these sources throughout the research process , and the kinds of sources you use will depend on your research topic and goals.
Scholarly sources are written by experts in their field and are typically subjected to peer review . They are intended for a scholarly audience, include a full bibliography, and use scholarly or technical language. For these reasons, they are typically considered credible sources .
Popular sources like magazines and news articles are typically written by journalists. These types of sources usually don’t include a bibliography and are written for a popular, rather than academic, audience. They are not always reliable and may be written from a biased or uninformed perspective, but they can still be cited in some contexts.
Cite this Scribbr article
If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.
Ryan, E. (2023, May 31). How to Find Sources | Scholarly Articles, Books, Etc.. Scribbr. Retrieved July 16, 2024, from https://www.scribbr.com/working-with-sources/finding-sources/
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1. Finding the root cause of lupus
2. restoring brain cells, 3. menstrual blood as a diagnostic tool, 4. cell therapy for melanoma, 5. rhino ivf, 6. pristine configuration, 7. restoring reefs, 8. ai to find aliens, 9. inverse vaccines, 10. sequencing the y-chromosome.
Scientists in many fields received little recognition for the last couple of years, as the world focused on the emergency push to develop vaccines and treatments for Covid-19. But that doesn't mean they weren't still busy researching a dizzying series of developments that are now being reported as major discoveries and achievements.
Scientists have discovered a cause of lupus and a possible way to reverse it. A study published in the journal Nature points to abnormalities in the immune system of lupus patients that is caused by a molecular abnormality. "What we found was this fundamental imbalance in the types of T cells that patients with lupus make," Deepak Rao, one of the study authors, said to NBC News . Specifically, "people with lupus have too much of a particular T cell associated with damage in healthy cells and too little of another T cell associated with repair," NBC News said.
The good news is that this could be reversed. A protein called interferon is mainly to blame for the T-cell imbalance. Too much interferon blocks another protein called the aryl hydrocarbon receptor, which helps regulate how the body responds to bacteria or environmental pollutants. In turn, too many T-cells are produced that attack the body itself. "The study found that giving people with lupus anifrolumab, a drug that blocks interferon, prevented the T-cell imbalance that likely leads to the disease," said NBC News.
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Scientists have found a way to repair brain cells impaired by a rare genetic disorder. A study published in the journal Nature found that a drug called antisense oligonucleotide allowed human neurons to develop normally despite carrying a mutation due to a genetic disorder called Timothy syndrome. "It's the beginning of a new era for many of these diseases that we first thought were untreatable," Dr. Huda Zoghbi, a professor at Baylor College of Medicine, said to NPR .
Timothy syndrome is caused by a mutation of a single gene in a person's DNA. The new drug develops an "antisense nucleotide, a small piece of synthetic genetic material that alters the proteins made by a cell," said NPR. The antisense nucleotide for Timothy syndrome was designed to replace a defective protein with a healthy version — "in effect counteracting the mutation responsible for the disorder." This same approach could potentially be used to treat other genetic disorders, "including some that cause schizophrenia, epilepsy, ADHD and autism spectrum disorder."
Menstrual blood can potentially be used to measure blood sugar. In early 2024, the U.S. Food and Drug Administration (FDA) approved a new diagnostic menstrual pad called the Q-Pad and A1C Test by the biotechnology research company Qvin. The Q-Pad is an organic cotton period pad that "collects the blood, which a laboratory then uses to analyze the individual's average blood sugar over three weeks through the A1C biomarker," said Forbes .
"There is a lot of clinically relevant information in this bodily fluid that comes every month," Sara Naseri, the CEO and co-founder of Qvin, said to Axios . "We've built a way for women to get insights about their health regularly. Non-invasively, using blood that comes every month, the menstrual blood." Diagnostic capabilities can potentially be extended to diagnose HPV or endometriosis.
The U.S. Food and Drug Administration (FDA) approved the first cellular therapy for aggressive forms of melanoma. The treatment, called Amtagvi, is "designed to fight off advanced forms of melanoma by extracting and replicating T cells derived from a patient's tumor," said NPR . These cells are also called tumor-infiltrating lymphocytes (TIL). T cells are integral in the immune system but can become "dysfunctional inside tumors."
"The approval of Amtagvi represents the culmination of scientific and clinical research efforts leading to a novel T cell immunotherapy for patients with limited treatment options," Dr. Peter Marks, the director of the FDA's Center for Biologics Evaluation and Research, said in a statement . The treatment won't work for everyone, but research by the National Institutes of Health showed a "56% response rate among patients with melanoma, and 24% of patients had a complete disappearance of their melanoma, regardless of where it was," Axios said. "This is the tip of the iceberg of what TIL can bring to the future of medicine," Patrick Hwu, CEO of Moffitt Cancer Center, said to Axios .
Scientists were able to impregnate a southern white rhino using in-vitro fertilization (IVF). Researchers in Kenya implanted a southern white rhino embryo into another of the same species using the technique in September 2023, resulting in a successful pregnancy. The technique could be used to save the northern white rhino from total extinction. "We achieved together something which was not believed to be possible," Thomas Hildebrandt , head of the reproduction management department at the Leibniz Institute for Zoo and Wildlife Research, said in a press conference.
There are two species of white rhinos: northern and southern. The northern white rhino is on the verge of extinction due to poaching, with only two females remaining. Luckily, scientists have sperm preserved from the last male rhino, which could be combined with an egg from the female and implanted into a southern white rhino female to act as a surrogate. Using a white rhino embryo to test the procedure was a "proof of concept" which is a "milestone to allow us to produce northern white rhino calves in the next two, two and a half years," Hildebrandt said.
Scientists discovered six exoplanets that revolve around a star in a rare pattern called orbital resonance, said a study published in the journal Nature . This means that "for every six orbits completed by planet b, the closest planet to the star, the outermost planet g completes one," CNN said, adding that "as planet c makes three revolutions around the star, planet d does two, and when planet e completes four orbits, planet f does three."
The system was deemed a "rare fossil" by Rafael Luque, a postdoctoral scholar in the University of Chicago's Department of Astronomy and Astrophysics. "We think only about one percent of all systems stay in resonance," Luque said in a statement . "It shows us the pristine configuration of a planetary system that has survived untouched." The discovery could help further the study of sub-Neptunes, which are planets larger than Earth but smaller than Neptune. They are not present in our solar system. "There is little agreement among astronomers about how these planets form and what they're made of — so an entire system consisting of sub-Neptunes could help scientists determine more about their origin," Luque said.
Coral bleaching has been a rapidly growing problem as climate change worsens. Without intervention, the reefs will continue to deteriorate. To counter this, scientists have explored the idea of a "coral gym," essentially a "laboratory to make corals stronger," NPR said. The goal is to "train" coral to survive more extreme conditions.
Warming oceans and rising temperatures are the largest contributors to coral degradation. "One of the things that we do in this lab is subject them to different environmental conditions and evaluate who's a little bit stronger," Ian Enochs, lead of the Coral Program at the Atlantic Oceanographic and Meteorological Laboratory at the National Oceanic and Atmospheric Administration, said to NPR. Researchers created a "complex matrix of aquariums" where they can "subject different types of corals to different environments and not only understand how they might survive, but perhaps help them to do so."
Scientists have created an artificial intelligence model that can detect alien life , said a study published in the journal PNAS . The algorithm can "distinguish between samples of biological and nonbiological origin 90% of the time," after being "trained using living cells, fossils, meteorites and lab-made chemicals," Live Science said. "Put another way, the method should be able to detect alien biochemistries, as well as Earth life," Robert Hazen, co-author of the study, said in a statement .
The AI "does not involve a machine having to look for specific things," but rather "looks for differences between samples," BBC said. "These results mean that we may be able to find a lifeform from another planet, another biosphere, even if it is very different from the life we know on Earth," Hazen said. "And, if we do find signs of life elsewhere, we can tell if life on Earth and other planets derived from a common or different origin."
Scientists may have found a way to calm immune responses for those with autoimmune disorders using an " inverse vaccine ," said a study published in the journal Nature Biomedical Engineering . The immune system responds to specific identifying markers on invaders like viruses and bacteria called antigens, "but some immune cells react to self-antigens," which are "molecules from our own cells," said Science . "In autoimmune diseases, these misguided immune cells turn against patients' own tissues."
The new research worked by "directing potential self-antigens to the liver," where "immune cells there pick up self-antigens and then stifle T cells that could target these molecules." The experiment was performed on mice. "The method they use is promising and potentially can induce better tolerance," neurologist and neuroimmunologist A.M. Rostami said to Science, adding that "we don't know" whether this approach is "applicable to human disease in which we don't know the antigen."
Scientists have finally sequenced the entire Y chromosome, one of the human sex chromosomes present in those assigned male at birth. The feat has been "notoriously difficult" because of the Y chromosome's "complex repeat structure," said a research paper published in the journal Nature .
"Just a few years ago, half of the human Y chromosome was missing" from knowledge of the human genome, Monika Cechova, co-lead author on the paper, said to CNN . "I would credit new sequencing technologies and computational methods for this," Arang Rhie, who also worked on the paper, said to Reuters . The X chromosome was fully sequenced back in 2020.
Understanding the Y chromosome can help with a number of health issues, including fertility. Genes have also "been shown to be required for the prevention of cancer and cardiovascular disease," Kenneth Walsh, a professor of biochemistry and molecular genetics at the University of Virginia School of Medicine, said to CNN.
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Researchers discover a new form of scientific fraud: Uncovering 'sneaked references'
by Lonni Besançon and Guillaume Cabanac, The Conversation
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A researcher working alone—apart from the world and the rest of the wider scientific community—is a classic yet misguided image. Research is, in reality, built on continuous exchange within the scientific community: First you understand the work of others, and then you share your findings.
Reading and writing articles published in academic journals and presented at conferences is a central part of being a researcher. When researchers write a scholarly article, they must cite the work of peers to provide context, detail sources of inspiration and explain differences in approaches and results. A positive citation by other researchers is a key measure of visibility for a researcher's own work.
But what happens when this citation system is manipulated? A recent Journal of the Association for Information Science and Technology article by our team of academic sleuths—which includes information scientists, a computer scientist and a mathematician—has revealed an insidious method to artificially inflate citation counts through metadata manipulations: sneaked references.
Hidden manipulation
People are becoming more aware of scientific publications and how they work, including their potential flaws. Just last year more than 10,000 scientific articles were retracted . The issues around citation gaming and the harm it causes the scientific community, including damaging its credibility, are well documented.
Citations of scientific work abide by a standardized referencing system: Each reference explicitly mentions at least the title, authors' names, publication year, journal or conference name, and page numbers of the cited publication. These details are stored as metadata, not visible in the article's text directly, but assigned to a digital object identifier, or DOI—a unique identifier for each scientific publication.
References in a scientific publication allow authors to justify methodological choices or present the results of past studies, highlighting the iterative and collaborative nature of science.
However, we found through a chance encounter that some unscrupulous actors have added extra references, invisible in the text but present in the articles' metadata, when they submitted the articles to scientific databases. The result? Citation counts for certain researchers or journals have skyrocketed, even though these references were not cited by the authors in their articles.
Chance discovery
The investigation began when Guillaume Cabanac, a professor at the University of Toulouse, wrote a post on PubPeer , a website dedicated to post-publication peer review, in which scientists discuss and analyze publications. In the post, he detailed how he had noticed an inconsistency: a Hindawi journal article that he suspected was fraudulent because it contained awkward phrases had far more citations than downloads, which is very unusual.
The post caught the attention of several sleuths who are now the authors of the JASIST article . We used a scientific search engine to look for articles citing the initial article. Google Scholar found none, but Crossref and Dimensions did find references. The difference? Google Scholar is likely to mostly rely on the article's main text to extract the references appearing in the bibliography section, whereas Crossref and Dimensions use metadata provided by publishers.
A new type of fraud
To understand the extent of the manipulation, we examined three scientific journals that were published by the Technoscience Academy, the publisher responsible for the articles that contained questionable citations.
Our investigation consisted of three steps:
- We listed the references explicitly present in the HTML or PDF versions of an article.
- We compared these lists with the metadata recorded by Crossref, discovering extra references added in the metadata but not appearing in the articles.
- We checked Dimensions, a bibliometric platform that uses Crossref as a metadata source, finding further inconsistencies.
In the journals published by Technoscience Academy, at least 9% of recorded references were "sneaked references." These additional references were only in the metadata, distorting citation counts and giving certain authors an unfair advantage. Some legitimate references were also lost, meaning they were not present in the metadata.
In addition, when analyzing the sneaked references, we found that they highly benefited some researchers. For example, a single researcher who was associated with Technoscience Academy benefited from more than 3,000 additional illegitimate citations. Some journals from the same publisher benefited from a couple hundred additional sneaked citations.
We wanted our results to be externally validated, so we posted our study as a preprint , informed both Crossref and Dimensions of our findings and gave them a link to the preprinted investigation. Dimensions acknowledged the illegitimate citations and confirmed that their database reflects Crossref's data. Crossref also confirmed the extra references in Retraction Watch and highlighted that this was the first time that it had been notified of such a problem in its database. The publisher, based on Crossref's investigation, has taken action to fix the problem.
Implications and potential solutions
Why is this discovery important? Citation counts heavily influence research funding, academic promotions and institutional rankings. Manipulating citations can lead to unjust decisions based on false data. More worryingly, this discovery raises questions about the integrity of scientific impact measurement systems, a concern that has been highlighted by researchers for years. These systems can be manipulated to foster unhealthy competition among researchers, tempting them to take shortcuts to publish faster or achieve more citations.
To combat this practice we suggest several measures:
- Rigorous verification of metadata by publishers and agencies like Crossref.
- Independent audits to ensure data reliability.
- Increased transparency in managing references and citations.
This study is the first, to our knowledge, to report a manipulation of metadata. It also discusses the impact this may have on the evaluation of researchers. The study highlights, yet again, that the overreliance on metrics to evaluate researchers, their work and their impact may be inherently flawed and wrong.
Such overreliance is likely to promote questionable research practices, including hypothesizing after the results are known, or HARKing ; splitting a single set of data into several papers, known as salami slicing; data manipulation; and plagiarism. It also hinders the transparency that is key to more robust and efficient research. Although the problematic citation metadata and sneaked references have now been apparently fixed, the corrections may have, as is often the case with scientific corrections , happened too late.
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