Indexing
Index Copernicus - is an international scientometric database available online, created in 1999 in Poland. The service provides the opportunity to create a scientist's profile and contains tools for assessing scientific productivity. Index Copernicus also offers traditional abstracting and indexing of scientific publications.
Open Ukrainian Citation Index (OUCI) — is a search engine and a database of scientific citations that come from all publications using the Cited-by service from Crossref and supporting the Initiative for Open Citations. The OUCI is intended to simplify the search for scientific publications, draw the attention of editorial boards to the problem of completeness and quality of metadata of Ukrainian scientific publications, improve the representation of Ukrainian scientific publications in specialized search engines (for example, Dimensions, Lens.org, 1findr, Scilit), which can expand their readership, and allow bibliometricians to freely study connections between authors and documents from various scientific disciplines, in particular, in the field of social sciences and humanities.
CrossRef - is an association of scholarly publishers created for the purpose of developing and maintaining a global high-tech infrastructure for scholarly communication. The CrossRef association maintains a shared global reference linking service that functions as a gateway between publishers' electronic platforms. This service does not store full texts of scientific publications, but it stores information about links between publications via Digital Object Identifier (CrossRef DOI) technology, as well as metadata of published scientific materials. Currently, 5,000 publishers from around the world are members of CrossRef. The CrossRef citation database covers more than 75 million journal articles and other types of scientific publications.
Вікідата (Wikidata) — is a free, multilingual, structured knowledge base that is part of the Wikimedia Foundation projects (along with Wikipedia, Wikimedia Commons, etc.). It is a "storage of facts" from which Wikipedia and other services draw verified information: dates, names, identifiers, and relationships between objects.
ROAD, the Directory of Open Access scholarly Resources - is a service offered by the ISSN International Centre that provides free access to those ISSN bibliographic records describing scholarly resources in open access: journals, monographic series, conference proceedings. ROAD complements the Global Open Access Portal (GOAP), developed by UNESCO, and provides a brief overview of the state of open access.
German Union Catalogue of Serials (ZDB) – is the world's largest collaborative bibliographic database of serials (journals, newspapers, academic series, etc.), bringing together the collections of thousands of German and Austrian libraries to facilitate search and interlibrary loan (ILL). It contains millions of bibliographic records and availability data for publications in print and electronic form, making it a key tool for librarians and researchers.
Google Scholar - is a popular Google service that allows you to easily conduct a broad search for scholarly literature. The aim of Google Scholar is to rank articles the way researchers do, weighing the full text of each article, the author, the publication in which the article appeared, and how often the article has been cited in other scholarly literature.
BASE: Bielefeld Academic Search Engine — is one of the world's largest search engines specialized in searching for open access scientific documents on the Internet. BASE is operated by the Bielefeld University Library (Germany). BASE collects, normalizes, and indexes data from repository servers using the "Open Archives Initiative Protocol for Metadata Harvesting" (OAI-PMH). In addition to OAI metadata, BASE indexes selected websites and local library data. All of this can be searched together via a single interface.
The Vernadsky National Library of Ukraine - is the largest library in Ukraine in terms of holdings and floor space, and the main scientific and information center of the state. It is ranked among the top twenty largest national libraries in the world. In Ukraine, all electronic versions of periodic printed scientific professional publications are made available on the official website of the Vernadsky National Library of Ukraine.
List of Scientific Professional Publications of Ukraine — Category "B" (Medicine, Pediatrics), approved for the publication of dissertation results for the award of scientific degrees.
