Problems of Legality has been approved for the List of Print Professional Scientific Journals of Ukraine recomended for publication of dissertations results:

• in juridical sciences (approved date: 07.10.15)

Academic Search Complete is a full text database of EBSCO Information Services. The database coffers an enormous collection of the most valuable full-text journals, providing users access to critical information from many sources unique to this database. The database indexes more than 13,800 indexed and abstracted journals and offers full texts for more than 9,000 journals. As a leading scholarly database, it provides comprehensive content, including PDF backfiles to 1887 for most influent journals, and searchable cited references for more than 1,400 titles.
Indexed Issues: since 2013.

Central and Eastern European Online Library (CEEOL) is an online archive which provides access to full text PDF articles from 1.175 humanities and social science journals and re-digitized documents pertaining to Central, Eastern and South-Eastern European topics.
As leading Central and Eastern European online resource, CEEOL offers an outstanding portfolio of more than 100,000 articles of journals which are published by prestigious scholarly and independent institutions. Database titles cover the full spectrum of humanities and social studies, and include numerous titles placed at the top of their fields of Central and Eastern European studies.
Indexed Issues: since 2015.
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Index Copernicus Journals Master List is a scientific journal database that contain currently over 13,000 journals from all over the world. This database covers all fields of science. Registered journals undergo rigorous, multidimensional evaluation, proving high quality. Appreciation to the IC Journals Master List expressed the Ministry of Science and Higher Education of Poland by placing the database of scientific journals IC Journals Master List to the list of databases for indexing in which, periodicals receive additional points in the evaluation conducted by the Ministry.
Indexed Issues: since 2014.
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Bielefeld Academic Search Engine (BASE) is one of the world's most voluminous multi-disciplinary search engines especially for academic open access web resources. This engine collects, normalises, and indexes data using the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH). BASE provides more than 70 million documents from more than 3,000 sources. Where available, bibliographic data is provided, and the results may be sorted by multiple fields, such as by author, Dewey Decimal Classification or year of publication.
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Directory of Open Access Journals (DOAJ) is an online directory that indexes and provides access to high quality, open access, peer-reviewed journals covering all areas of science, technology, medicine, social science and humanities. This directory has index of about 2 million articles from more than 10,000 journals of open-access publishers from 134 countries.
The project defines open access journals as scientific and scholarly journals that meet high quality standards by exercising peer review or editorial quality control and use a funding model that does not charge readers or their institutions for access.
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Elektronische Zeitschriftenbibliothek (The Electronic Journals Library) is a service to facilitate the use of scholarly journals on the internet. It offers a fast, structured and unified interface to access full-text articles online. It comprises more than 89900 titles from all areas of research, about 18300 of which are available online only. In addition, more than 104800 journals, which are provided by aggregators, are listed. The EZB contains 56743 journals which are accessible free of charge to anyone. Furthermore, the participating libraries provide their users access to the journals they subscribe to. The journals are presented in lists sorted by research area. An updated list is generated by the database according to the member library's specifications each time it is accessed. The Electronic Journals Library was founded in 1997 by the University Library of Regensburg in co-operation with the University Library of Technische Universität München.

The European Reference Index for the Humanities and the Social Sciences (ERIH PLUS) was created and developed by European researchers under the coordination of the Standing Committee for the Humanities (SCH) of the European Science Foundation (ESF). The ERIH lists, which initially covered only humanities disciplines, were first published by ESF in 2008, while revised lists were made available in 2011-2012. In 2014, responsibility for the maintenance and operation of ERIH was transferred to the NSD - Norwegian Centre for Research Data. The reference index at NSD is called ERIH PLUS in order to indicate that it has been extended to include the social sciences.
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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. Google Scholar index includes most peer-reviewed online journals of Europe and America's largest scholarly publishers. This product provides the citation indexing features. While Google does not publish the size of Google Scholar's index, third-party researchers estimated it to contain roughly 160 million documents.
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MIAR - Information Matrix for the Analysis of Journals. MIAR collects data for the identification and the analysis of scientific journals . If you enter an ISSN in the searchbox , the system will check in which databases, those referred to in the matrix, the journal is indexed. The system holds more than 40,000 publications. It was founded in Barcelona (Spain).
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Ulrich's Periodicals Directory - subscription catalog of American publishing Bowker, is the largest database that describes the global flow of periodicals in all subject areas

WorldCat is a global union catalog and the world's largest bibliographic database that itemizes the collections of 72,000 libraries in 170 countries that participate in the Online Computer Library Center (OCLC) global cooperative. It contains more than 330 million records, representing over 2 billion physical and digital assets (articles, archival materials, books, journals, maps, music, videos, and other resources) in 485 languages.
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Scientific Periodicals of Ukraine (SPU VNLU) Producer: Vernadsky National Library of Ukraine Scientific Periodicals of Ukraine - project Vernadsky National Library of Ukraine (VNLU). Ukrainian scientific periodicals contain articles from international journals in all fields of knowledge and carries out the completion of full-text electronic information resources, electronic counterparts publications or electronic publications provided by the owners. As part of an information resource "Scientific Periodicals of Ukraine" is adjusted full-text search of scientific publications in PDF format. VNLU spent working on the integration of information resource "Scientific Periodicals of Ukraine" to the interface of analytical services, Google Scholar (Google Academy). It contains approximately 2520 - journals; 25372 - issues; 628524 - full texts of articles.
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