# Karl Christian Planck

> German philosopher (1819–1880)

**Wikidata**: [Q122068](https://www.wikidata.org/wiki/Q122068)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Karl_Christian_Planck)  
**Source**: https://4ort.xyz/entity/karl-christian-planck


## References

1. Integrated Authority File
2. Czech National Authority Database
3. International Standard Name Identifier
4. Virtual International Authority File
5. [Source](https://kalliope-verbund.info/DE-611-BF-6264)
6. [Source](https://kalliope-verbund.info/DE-611-BF-6092)
7. CERL Thesaurus