Differences Between Google Scholar, Worldcat Discovery and Scopus

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Differences between Google Scholar, WorldCat Discovery and Scopus Google Scholar WorldCat Discovery - TU Delft Discovery Worldwide/The Scopus Netherlands Description Multidisciplinary information TU Delft search engine. With WorldCat Search TU Delft and beyond Multidisciplinary information resource. resource. You can, in a simple way, Discovery you search the library’s With Scopus you search for articles from search for: articles, theses, books, printed collection and its ever- more than 21,000 journal titles and and other scientific documents increasing online collection. conference proceedings. available online. Search options Limited Limited Limited Extensive Refine search Refine by period (in left-hand Through options in the left-hand Through options in the left-hand Through options in the left-hand column, results column) column, such as topic, author, column, such as topic, author, such as publication year, author, subject publication year, and format. publication year, and format. area, document type, keyword, and country Sort options By relevance or publication year By relevance or publication year By relevance or publication year By publication date, author, source title, number of citations or relevance Full-text Search results full-text available if: All search results full-text available Search results full-text available if: Search results full-text available if: availability* - Published in a journal for which the (unless temporarily out on loan) - Published in a journal for which - Published in a journal for which the Library has a subscription or the Library has a subscription or Library has a subscription or - Freely available online (open - Published in an open access - Published in an open access journal access) journal Document types Mostly published journal articles or All books and e-books in the Library Most books and e-books worldwide, Mostly journal articles, conference papers included preprints of articles, as well as collection, all documents from the TU as well as journal articles. and other documents published in selected theses, books, and other scientific Delft Repository, and a selection of scientific journals and conference documents available online journal articles. proceedings Selection of By computer (secret algorithm) Manually by subject specialist Manually by subject specialist Manually by subject specialist Transparencyinformation of the Unclear which materials are or are List of books and journals available on List of books and journals available Full list of included journals and other selection not included the website; unclear which journal on the website; unclear which documents available on the website articles are included journal articles are included *If a book or journal article is not available, InterLibrary Loan (ILL) can be used to obtain it from another library in The Netherlands or abroad. .

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Sci-Hub Provides Access to Nearly All Scholarly Literature
Sci-Hub provides access to nearly all scholarly literature A DOI-citable version of this manuscript is available at https://doi.org/10.7287/peerj.preprints.3100. This manuscript was automatically generated from greenelab/scihub-manuscript@51678a7 on October 12, 2017. Submit feedback on the manuscript at git.io/v7feh or on the analyses at git.io/v7fvJ. Authors • Daniel S. Himmelstein 0000-0002-3012-7446 · dhimmel · dhimmel Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania · Funded by GBMF4552 • Ariel Rodriguez Romero 0000-0003-2290-4927 · arielsvn · arielswn Bidwise, Inc • Stephen Reid McLaughlin 0000-0002-9888-3168 · stevemclaugh · SteveMcLaugh School of Information, University of Texas at Austin • Bastian Greshake Tzovaras 0000-0002-9925-9623 · gedankenstuecke · gedankenstuecke Department of Applied Bioinformatics, Institute of Cell Biology and Neuroscience, Goethe University Frankfurt • Casey S. Greene 0000-0001-8713-9213 · cgreene · GreeneScientist Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania · Funded by GBMF4552 PeerJ Preprints | https://doi.org/10.7287/peerj.preprints.3100v2 | CC BY 4.0 Open Access | rec: 12 Oct 2017, publ: 12 Oct 2017 Abstract The website Sci-Hub provides access to scholarly literature via full text PDF downloads. The site enables users to access articles that would otherwise be paywalled. Since its creation in 2011, Sci- Hub has grown rapidly in popularity. However, until now, the extent of Sci-Hub’s coverage was unclear. As of March 2017, we find that Sci-Hub’s database contains 68.9% of all 81.6 million scholarly articles, which rises to 85.2% for those published in toll access journals.
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Differences Between H-Index Measures from Different Bibliographic Sources and Search Engines
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