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- PUB7
- policy:public3
- Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)2
- Creative Commons - Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)2
- Not specified2
- http://creativecommons.org/licenses/by-nc-sa/4.0/2
- http://creativecommons.org/licenses/by-nc/3.0/2
- http://creativecommons.org/licenses/by-nc/4.0/2
- http://creativecommons.org/publicdomain/mark/1.0/2
- Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)1
- Creative Commons - Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)1
- Creative Commons - Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)1
- http://creativecommons.org/licenses/by-nc-sa/3.0/1
- http://creativecommons.org/licenses/by-nd/4.0/1