# Karl Friedrich Joseph Birnbaum
**Wikidata**: [Q94762737](https://www.wikidata.org/wiki/Q94762737)  
**Source**: https://4ort.xyz/entity/karl-friedrich-joseph-birnbaum


## References

1. Czech National Authority Database
2. Hessian Biography
3. Catalog of the German National Library
4. Virtual International Authority File