# Theodor Sitzmann
**Wikidata**: [Q85431735](https://www.wikidata.org/wiki/Q85431735)  
**Source**: https://4ort.xyz/entity/theodor-sitzmann


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Virtual International Authority File
4. Catalog of the German National Library
5. NUKAT
6. datos.bne.es
7. LIBRIS. 2018