# Karl Töpfer
**Wikidata**: [Q94870130](https://www.wikidata.org/wiki/Q94870130)  
**Source**: https://4ort.xyz/entity/karl-t-pfer-q94870130


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-104529)