# Hans Ulrich Köttgen
**Wikidata**: [Q94855255](https://www.wikidata.org/wiki/Q94855255)  
**Source**: https://4ort.xyz/entity/hans-ulrich-k-ttgen


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](https://kalliope-verbund.info/DE-611-BF-106475)