# Theodor Penners
**Wikidata**: [Q94915604](https://www.wikidata.org/wiki/Q94915604)  
**Source**: https://4ort.xyz/entity/theodor-penners


## References

1. BnF authorities
2. Catalog of the German National Library
3. Virtual International Authority File
4. CiNii Research
5. VIAF ID