Ukrainian list of journals indexed (ULJI) - it is a system of scientometric monitoring of scientific activity subjects in Ukraine.
Open Ukrainian Citation Index (OUCI) (Link)
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. ( Link )
Index Copernicus (Poland) - International scientometric base (Link). This website includes indexing, ranking and abstracting journals, and is a platform for scientific collaboration and joint research projects.
Directory of Open Access Journals (DOAJ) - is website that lists open access journals and is maintained by Infrastructure Services for Open Access (IS4OA). 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." (Link)
WorldCat - the world's largest bibliographic database, with over 240 million records of all kinds of products for 470 languages. Base is created by joint efforts of more than 72 thousand libraries in 170 countries across the organization Online Computer Library Center. ( Link )
Bielefeld Academic Search Engine (BASE) - search engine (Germany), which is one of the most powerful suppliers of actual data on the scientific publications of European scientists. More detailed information on publications can be found here ( Link )
Google Scholar is free access search system that provides full text search of scientific publications in all formats and disciplines ( Link )
“Ukrainika naukova” - nationwide abstract database
The placing of journal in the libraries of the world