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A digital object identifier (DOI) is a unique persistent identifier to a published work, similar in concept to an ISBN. Wikipedia supports the use of DOI to link to published content. Where a journal source has a DOI, it is good practice to use it, in the same way as it is good practice to use ISBN references for book sources.
the article about bibliographic databases for information about databases giving bibliographic information about finding books and journal articles. Note that "free" or "subscription" can refer both to the availability of the database or of the journal articles included. This has been indicated as precisely as possible in the lists below.
Find this article at JURN, a curated search engine for free academic articles and books; Find this article at OpenDOAR, a search engine for academic repositories; Find this article in the DOAJ, a multidisciplinary index of open-access journal content; Find this article at CORE, an aggregator of open-access research; Find this article at PubMed ...
A DOI is a type of Handle System handle, which takes the form of a character string divided into two parts, a prefix and a suffix, separated by a slash.. prefix/suffix. The prefix identifies the registrant of the identifier and the suffix is chosen by the registrant and identifies the specific object associated with that DOI.
article-number: For journals that provide article numbers for the articles in a journal issue; rendered between volume/issue and page(s). department : Title of a regular department, column , or section within the periodical or journal.
Number of native OSF Preprints documents: 25,114. >1,000,000 2017 Center for Open Science: PaleorXiv [21] Paleontology: Preprint server for paleontology >100 2017 Center for Open Science: PeerJ PrePrints [22] Biology, medicine: Initially, developed as preprint server for PeerJ submissions. Closed Sep 30th 2019. >1,000 2013–2019 O'Reilly Media ...
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Installing the Unpaywall extension on your browser helps you find the full text of the articles wherever you found them. WorldCat has millions of books and journal articles, and if you register for a free account, it will show you the closest libraries to you that have the source your are looking for. Some books and articles are available in ...