# Hans Klaus Langer
**Wikidata**: [Q94936403](https://www.wikidata.org/wiki/Q94936403)  
**Source**: https://4ort.xyz/entity/hans-klaus-langer


## References

1. Catalog of the German National Library
2. Virtual International Authority File
3. [Source](https://kalliope-verbund.info/DE-611-BF-5468)