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1. scholar.google.comGoogle Scholar

   scholar.google.com

   Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

   • Select Courts

     Select Courts - Google Scholar

   • Scholar

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   • ‪Juner Zhu‬

     ‪Northeastern University‬ - ‪‪Cited by 3,089‬‬ - ‪Applied...

   • Citations

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   • Settings

     Settings - Google Scholar

   • ‪Ronald C Kessler‬

     ‪McNeil Family Professor of Health Care Policy, Harvard...

   • Metrics

     Google Scholar Citations lets you track citations to your...

   • ‪Seyedali Mirjalili‬

     ‪Professor, Torrens University Australia, Obuda University,...

2. unpaywall.orgUnpaywall

   unpaywall.org

   An open database of 51,362,893 free scholarly articles. We harvest Open Access content from over 50,000 publishers and repositories, and make it easy to find, track, and use. Get the extension.

3. doaj.orgDirectory of Open Access Journals – DOAJ

   doaj.org

   • Αποθηκευμένο αντίγραφο

   International Journal of Didactic Mathematics in Distance Education. DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online for everyone.

4. about.jstor.org › oa-and-freeOpen and free content on JSTOR and Artstor

   about.jstor.org › oa-and-free

   • Αποθηκευμένο αντίγραφο

   Search open content on JSTOR. Journals. Explore our growing collection of Open Access journals. Early Journal Content, articles published prior to the last 95 years in the United States, or prior to the last 143 years if initially published internationally, are freely available to all.

5. library.ppu.edu › en › freeresourceGoogle Scholar - Free Fulltext - Free Dwonload - PDF

   library.ppu.edu › en › freeresource

   • Αποθηκευμένο αντίγραφο

   Search for PDF files about any title or subject with the following query: filetype:pdf Features of Google Scholar. Search all scholarly literature from one convenient place. Explore related works, citations, authors, and publications. Locate the complete document through your library or on the web

6. www.researchgate.net › publication › 263572400_Google_Scholar(PDF) Google Scholar - ResearchGate

   www.researchgate.net › publication › 263572400_Google_Scholar

   1 Ιαν 2011 · Google Scholar is an internet-based search engine designed to locate scholarly information, including peer-reviewed articles, theses, books, preprints, abstracts, and court opinions from...

7. paperpile.com › g › academic-search-enginesThe best academic search engines [Update 2024] - Paperpile

   paperpile.com › g › academic-search-engines

   • Αποθηκευμένο αντίγραφο

   While classic academic databases like Web of Science and Scopus are locked behind paywalls, Google Scholar and others can be accessed free of charge. In order to help you get your research done fast, we have compiled the top list of free academic search engines.