1. Scientific Periodicals Ukraine - the portal created by Vernadsky National Library (link)

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2. Google Academy - search engine for full texts of scientific publications of all formats and disciplines. The project runs from November 2004. The index of "Google Academy" includes most peer-reviewed online journals of the largest scientific publishing houses of Europe and America. (link)

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3.  Polish Scholarly Bibliography (PBN) -  is a portal of the Polish Ministry of Science and Higher Education, collecting information on publications of Polish scientists and Polish and foreign scholarly journals. PBN is a part of POL-on - The System of Information on Higher Education (link).

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4. ResearchBib - the international multidisciplinary database of scientific journals including descriptions of journals of more than 5400 publishers (link).

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5. Electronic Journals Library. Electronic Journals Library since 1997. within the framework of the University Library of Regensburg, in collaboration with the Library of the Technical University of Munich offers a fast, structured and unified access (in English and German) to scientific full-text journals. It includes 76,419 titles, of which 13,923 journals in all fields of knowledge is published only in electronic form. 45575 journals are freely available in full-text version. Full access to all publications are institutions involved in the project (link).

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6. Open J-Gate - is an electronic gateway to global e-journal literature. Launched in 2001 by Informatics India Limited, J-Gate provides seamless access to  millions of journal articles available online offered by 12,803 Publishers. It presently has a massive database of journal literature, indexed from 43,033 e-journals with links to full text at publisher sites. J-Gate also plans to support online subscription to journals, electronic document delivery, archiving and other related services (link).

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7. Bielefeld Academic Search Engine (BASE) - search service (Germany), which is one of the most powerful suppliers of up-to-date data on scientific publications of European scientists. More details on publications can be found here (link).

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8. Ulrichsweb Global Serials Directory is the standard library directory and database providing information about popular and academic magazines, scientific journals, newspapers and other serial publications. (link)

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9. Academic keys - base of search of scientific magazines according to professional activity (link).