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