# Karl Jansen

> German high school teacher

**Wikidata**: [Q19279149](https://www.wikidata.org/wiki/Q19279149)  
**Source**: https://4ort.xyz/entity/karl-jansen-q19279149


## References

1. Integrated Authority File
2. [Source](https://kalliope-verbund.info/DE-611-BF-122357)
3. [Source](https://archive.org/stream/nomenclatorphilo00ecks?ui=embed#page/270/mode/2up)
4. Virtual International Authority File
5. CERL Thesaurus