License
- All rights reserved11,861
- Attribution 4.0 (CC BY 4.0)939
- Attribution 3.0 United States227
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- Attribution-NonCommercial 4.0 (CC BY-NC 4.0)142
- CC0 1.0 Universal111
- Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0)98
- Public Domain Mark 1.098
- Attribution-ShareAlike 4.0 (CC BY-SA 4.0)48
- Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0)42
- Attribution-NonCommercial-ShareAlike 3.0 United States22
- Attribution-NoDerivs 3.0 United States17
- Attribution-NoDerivatives 4.0 (CC BY-ND 4.0)13
- Attribution-NonCommercial 3.0 United States10
- Attribution-ShareAlike 3.0 United States4
- Apache 2.01
- MIT1