# Friedrich Wilhelm Oswald Kallenbach
**Wikidata**: [Q55913709](https://www.wikidata.org/wiki/Q55913709)  
**Source**: https://4ort.xyz/entity/friedrich-wilhelm-oswald-kallenbach


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. Biodiversity Heritage Library