Is Google Scholar a database or search engine?

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1. What is the H index in Google Scholar?
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5. What is a good impact factor for a journal?
6. How do you find the H index of a researcher?
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Tags

1. #disciplines
2. #topics
3. #journals
4. #indexes
5. #scholar
6. #scholarly
7. #collects
8. #articles
9. #included
10. #researchers
11. #certain
12. #google
13. #specific
14. #other
15. #place
16. #intends
17. #purpose
18. #different
19. #start
20. #information
21. #usually
22. #index
23. #being
24. #databases