1. Web of Science |
2. EBSCO Publishing Electronic Databases |
3. Google Scholar |
4. NLM Catalog |
5. University of Hong Kong Libraries |
6. IIFS – International Impact Factor Services |
7. Academic Journals Databases |
8. The British Library |
9. Directory of Research Journal Indexing |
10. National Knowledge Resource Consortium |
11. University of Michigan-M Library |
12. San Jose State University, Dr Luther King Jr Library |
13. Indiana University, Bloomington |
14. OhioLINK |
15. Harold B. Lee Library |
16. WZB Berlin Electronic Journals Library |
17. Fudan University Library |
18. GENAMICS Journal Seek |
19. USC libraries – University OF California |
20. Katalog plus - Universitat Hamburg |
21. University of Leipzig Library |
22. UIC Library of Health Sciences, Chicago |
23. Sherpa Romeo |
24. Forschungszentrum Julich – Central Library |
25. Cook Library – Western Theological Seminary |