International indexing
1. Scopus
2. EMBASE
4. Central & Eastern European Academic Source (CEEAS)
5. Academic Search Ultimate (EBSCO)
6. Index Copernicus Journals Master List
7. CrossRef
8. MIAR
9. WorldCat
10. Bielefeld Academic Search Engine (BASE)
11. National Library of Ukraine named after VI Vernadsky
12. Google Scholar (Google Академія)
13. OpenAIRE
14. EuroPub
15. ResearchBib
16. Directory of Open Access scholarly Resources (ROAD)
17. Scilit
18. SHERPA RoMEO
19. Neliti
20. CORE (COnnecting REpositories)
21. Ulrich's Periodicals Directory
22. ResearchGate
23. Lens
24. Korea Open Access Platform for Researchers (KOAR)
25. Paperity
26. Dimensions
27. Polska Bibliografia Naukowa
28. SJSU (California, United States) library
29. Сobiss
30. SLUB
31. AMiner
32. DeepDyve
33. China National Knowledge Infrastructure (CNKI)
