License
- All rights reserved11,851
- Attribution 4.0 (CC BY 4.0)977
- Attribution 3.0 United States257
- Attribution-NonCommercial 4.0 (CC BY-NC 4.0)217
- Attribution-NonCommercial-NoDerivs 3.0 United States169
- CC0 1.0 Universal121
- Public Domain Mark 1.0111
- Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0)100
- Attribution-ShareAlike 4.0 (CC BY-SA 4.0)48
- Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0)41
- Attribution-NonCommercial-ShareAlike 3.0 United States25
- Attribution-NoDerivs 3.0 United States17
- Attribution-NoDerivatives 4.0 (CC BY-ND 4.0)15
- Attribution-NonCommercial 3.0 United States12
- Attribution-ShareAlike 3.0 United States4
- Apache 2.01
- MIT1