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. The Google Scholar index includes most peer-reviewed online journals of Europe and America's largest scholarly publishers, plus scholarly books and other non-peer reviewed journals.Link
The Centre for Agriculture and Bioscience International (CABI, sometimes also referred to as CAB International) is a not-for-profit inter-governmental development and information organisation based in the United Kingdom. It focuses primarily on agricultural and environmental issues in the developing world.Link
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
National Library of Ukraine Vernadsky -biggest Library of Ukraine, Chief Scientific Information Center of State. Ranked among the top ten national libraries of the world.Link
Looking for Agricultural Science and Technology Information? Papers, data, statistics, and multimedia material, you get it with AGRIS all on one page. (Since November 2017)Link
Bibliometrics of Ukrainian science is an information-analytical system. Designed to provide society with a holistic picture of the state of science in Ukraine based on the consolidated data of scientometric platforms Google Scholar and ScopusLink
