Membership:

1. iThenticate

2. CrossRef (included in 2016)

Scientometric databases, repositories and libraries:

1. Index Copernicus

2. Google Scholar

3. WorldCat

4. Directory of Open Access Journals (DOAJ)

5. Ulrich's Periodicals Directory

6. Neliti

7. ResearchBib

8. BASE

9. Directory of Open Access scholarly Resources (ROAD)

10. Semantic Scholar

11. CORE (COnnecting REpositories)

12. MIAR

13. JournalTOCs

14. WorldWideScience.org

15. OpenAIRE

16. Zeitschriftendatenbank (ZDB)

17. Scilit

18. Dimensions

19. Scholarly Citation Index Analytics (SCIA)

20. EuroPub

21. Lens

22. Korea Open Access Platform for Researchers (KOAR)

23. Wizdom.ai

24. CNKI

25. Sobiad

26. Academic Search Premier