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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 3,097‬‬ - ‪Applied...

   • Citations

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   • Settings

     Settings - Google Scholar

   • ‪Ronald C Kessler‬

     New articles by this author. New citations to this author....

   • Metrics

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

   • ‪Seyedali Mirjalili‬

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

2. doaj.orgDirectory of Open Access Journals – DOAJ

   doaj.org

   • Αποθηκευμένο αντίγραφο

   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.

3. www.jstor.orgJSTOR Home

   www.jstor.org

   Enhance your scholarly research with underground newspapers, magazines, and journals. Browse Independent Voices Explore collections in the arts, sciences, and literature from the world’s leading museums, archives, and scholars.

4. www.researchgate.net › search › publicationsSearch | ResearchGate

   www.researchgate.net › search › publications

   Find the research you need | With 160+ million publication pages, 1+ million questions, and 25+ million researchers, this is where everyone can access science.

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

   about.jstor.org › oa-and-free

   • Αποθηκευμένο αντίγραφο

   How to find the millions of journal articles, ebooks, images, and other media available on JSTOR and Artstor as Open Access or free to everyone.

6. unpaywall.orgUnpaywall

   unpaywall.org

   An open database of 51,418,234 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

7. www.researchgate.netResearchGate | Find and share research

   www.researchgate.net

   Access 160+ million publications and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.