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International System for Agricultural Science and Technology. Since 1974, the Food and Agriculture Organization of the United Nations (FAO) has provided support to its member countries to make their research outputs visible and accessible through the International System for Agricultural Science and Technology (AGRIS); one of the most comprehensive search engines in food and agricultural scientific literature providing free access to millions of bibliographic records in 118 different languages.
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is a comprehensive applied life sciences platform that includes all CABI databases and collections, including CAB Abstracts, Global Health, and VetMed Resource. It contains over 15 million records spanning a variety of scientific disciplines, including agriculture, veterinary medicine, human health, and nutrition. Indexed resources include journal articles, book chapters, books, case studies, conference proceedings, and other gray literature from 1910 to the present.
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is one of the largest and oldest academic libraries in the United Kingdom. In addition to its physical collections, UL provides access to tens of millions of electronic articles, books, journals, scores, and other electronic resources.
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is an official Digital Object iIdentifier (DOI) Registration Agency of the International DOI Foundation. The CrossRef citation system was founded in 1999 as a cooperative effort among publishers to enable persistent cross-publisher citation linking in online academic journals. Nowadays the system includes over 75 millions of journal articles and other publications (books, dissertations, technical reports, etc.) from thousands of academic and professional publishers worldwide. This service does not keep full texts of scientific papers but collects the information about linking between publications via Digital Object Identifier (Crossref DOI) technology as well as metadata of these papers. With the CrossRef system, researchers can use functionality at the level of a global scholarly publishing environment.
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is a website that hosts a community-curated list of open access journals, maintained by Infrastructure Services for Open Access (IS4OA). It was launched in 2003 with 300 open access journals. The project defines open access journals as scientific and scholarly journals making all their content available for free, without delay or user-registration requirement, and meeting high quality standards, notably by exercising peer review or editorial quality control. DOAJ defines those as open access journals where an open license is used so that any user is allowed immediate free access to the works published in the journal and is permitted to read, download, copy, distribute, print, search, or link to the full texts of [the] articles, or use them for any other lawful purpose. The mission of DOAJ is to "increase the visibility, accessibility, reputation, usage and impact of quality, peer-reviewed, open access scholarly research journals globally, regardless of discipline, geography or language.
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located in Florence, Italy, is Europe’s postgraduate and postdoctoral research university dedicated to the social sciences and humanities. Established in 1972 by the European Union’s founding member states, the EUI is an intergovernmental organisation providing advanced academic training and cutting-edge research opportunities in the fields of economics, history, law, political and social sciences, and beyond.
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was founded in 1997 by the University Library of Regensburg in cooperation with the University Library of the Technical University of Munich. It contains a list of all licensed or freely available journals in the Hamburg University library system. The EZB offers fast, structured and standardized access to scientific full-text journals in all subject areas.
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central bibliographic database for title and ownership records of current collections in Germany and Austria, e.g. from professional journals, magazines and newspapers. The ZDB stores records from almost all German academic libraries and many other public libraries and is freely accessible online. The journal database is managed by the State Library of Berlin (SBB) in cooperation with the German National Library (DNB), which is responsible for technical system support and further development. At the European level, access to digitized newspapers will be continuously expanded.
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is free-of-charge search system of scientific publication full texts in all formats and disciplines. The project was launched in November 2004. Google Scholar index includes data on the majority of peer-reviewed online journals of the largest scientific publishing houses in Europe and America.
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is the international scientometric database (Index Copernicus Journals Master List) founded in 1999 in Poland. The website gives the possibility of indexing, ranking and referencing journals, and also is a platform for scientific cooperation and implementation of joint scientific projects.
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is the largest repository and the main scientific and information center in Ukraine. It is one of the twenty largest national libraries in the world. Contains the online resources fund.
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is a bibliographic catalogue of scientific papers, authors and institutions accessible in open access mode, named after the Library of Alexandria. It started operating in January 2022 by OurResearch as a successor of the terminated Microsoft Academic Graph. OpenAlex competes with commercial products such as Clarivate's Web of Science or Elsevier's Scopus, and is complemented by Bibliometrics tools and an API.
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is the Ukrainian search engine and the database of scientific citations that come from all publishers using the Cited-by service from Crossref and supporting the Initiative for Open Citations.
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is a database of scientific papers developed and maintained by the open access publishing house MDPI. It is a complete free database for scientists using a new method of matching data and indexing scientific materials.
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is the worldwide network of library content and services. Launched in 1998 by the American non-profit orgabisation Online Computer Library Center ( OCLC Inc.), nowadays it is collectively maintained by tens of thousands of institutions, mostly libraries. The WorldCat system is aimed at librarians for cataloging and research, as well as the general public.
