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  1. Google Scholar

    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.

  2. ResearchGate | Find and share research

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

  3. Academia.edu - Find Research Papers, Topics, Researchers

    Academia.edu is the platform to share, find, and explore 50 Million research papers. Join us to accelerate your research needs & academic interests.

  4. ScienceDirect.com | Science, health and medical journals, full text ...

    ScienceDirect is the world's leading source for scientific, technical, and medical research. Explore journals, books and articles.

  5. JSTOR Home

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

  6. PubMed

    PubMed® comprises more than 39 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from …

  7. arXiv.org e-Print archive

    arXiv is a free distribution service and an open-access archive for nearly 2.4 million scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, …

  8. Wiley Online Library | Scientific research articles, journals, books ...

    One of the largest and most authoritative collections of online journals, books, and research resources, covering life, health, social, and physical sciences.

  9. PaperGate - Free Research Paper Search Engine | 250M

    Free PDF downloads, DOI lookup, and open-access research papers. Access peer-reviewed publications from 250K+ journals and 100M+ authors worldwide.

  10. SSRN Home Page

    SSRN provides NaN preprints and research papers from NaN in over 69 Disciplines. Applied Sciences are those disciplines, including applied and pure mathematics, that apply existing …