모든 지식의 총합을 위한 자유지식위키, 리프위키
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- self|Cc-zero|CC0 1.0 Universal Public Domain Dedication, all rights waived (Public domain)
- PD-self|Own work, all rights released (Public domain)
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- self|cc-by-sa-3.0|Own work, copyleft, attribution required (CC BY-SA 3.0)
- Not self-made, but has been released under:
- Creative Commons licenses
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- Cc-zero|CC0 1.0 universell Public domain-dedikation
- Public domain:
- PD-old-100|Author died more than 100 years ago
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