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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 ...
The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. . Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is availa
PubMed Central is a free digital archive of full articles, accessible to anyone from anywhere via a web browser (with varying provisions for reuse). Conversely, although PubMed is a searchable database of biomedical citations and abstracts, the full-text article resides elsewhere (in print or online, free or behind a subscriber paywall ).
Other useful search engines include. Web of Science; InfoTrac; Scopus; PubMed; Google Scholar; Google Books often offers readers a few sentences even when full access is not granted, and can help editors find reliable sources quickly, either by looking at the book's references or by citing the book itself. Check that a particular book is ...
Google Search (also known simply as Google or Google.com) is a search engine operated by Google. It allows users to search for information on the Web by entering keywords or phrases. Google Search uses algorithms to analyze and rank websites based on their relevance to the search query. It is the most popular search engine worldwide.
Scientific publications on the World Wide Web (although e.g. scientific journals are now commonly published on the web). Books, technical reports , pamphlets, and working papers issued by individual researchers or research organizations on their own initiative; these are sometimes organized into a series.
Google Dataset Search is a search engine from Google that helps researchers locate online data that is freely available for use. [1] The company launched the service on September 5, 2018, and stated that the product was targeted at scientists and data journalists. The service was out of beta as of January 23, 2020. [2]
arch-ive/YYMMNNN for older papers, e.g. hep-th/9901001. Different versions of the same paper are specified by a version number at the end. For example, 1709.08980v1. If no version number is specified, the default is the latest version. arXiv uses a category system. Each paper is tagged with one or more categories. Some categories have two layers.