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The terms "free", "subscription", and "free & subscription" will refer to the availability of the website as well as the journal articles used. Furthermore, some programs are only partly free (for example, accessing abstracts or a small number of items), whereas complete access is prohibited (login or institutional subscription required).
Download as PDF; Printable version; In other projects ... This is a list of online databases accessible via the Internet. ... Philosophy Research Index; Plant DNA C ...
Free MathWorld: English Articles on a wide variety of mathematics related topics Free On-Line Encyclopedia of Integer Sequences: English Information about hundred thousands of integer sequences, including formulas, related sequences, programs, etc. Free/CC BY-NC 3.0: PlanetMath: English Mathematics related topics and articles Free/GNU: Stacks ...
There are many PDF editors on the market, including the top-rated Adobe Acrobat Standard and Acrobat Pro, which provide capabilities to convert PDFs, edit them, add e-signatures, and protect the ...
Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
National, State & Local Newspaper Archives - Collection of free newspaper archives in the United States, from the XooxleAnswers professional online research service. The History Guide - Material for high school (particularly AP European History) and undergraduate students. Includes lectures on Ancient and Medieval European History, Early Modern ...
JSTOR (/ ˈ dʒ eɪ s t ɔːr / JAY-stor; short for Journal Storage) [2] is a digital library of academic journals, books, and primary sources founded in 1994. Originally containing digitized back issues of academic journals, it now encompasses books and other primary sources as well as current issues of journals in the humanities and social sciences. [3]
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related to: online databases for kids research articles examples free pdf editor adobe