CrossRef is an association of scholarly publishers that develops shared infrastructure to support more effective scholarly communications. Our citation-linking network today covers over 68 million journal articles and other content items (books chapters, data, theses, technical reports) from thousands of scholarly and professional publishers around the globe.Link
SHERPA/RoMEO is a service run by SHERPA to show the copyright and open access self-archiving policies of academic journals.Link
The journal is the participant joint with UNESCO and ISSN of the International ROAD project (Directory of Open Access scholarly Resources)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
Vernadsky National Library of Ukraine - the largest Library of Ukraine, major Scientific Information Center of the state. Ranked among the top ten national libraries of the world.Link
