# Otto Urbach
**Wikidata**: [Q111993252](https://www.wikidata.org/wiki/Q111993252)  
**Source**: https://4ort.xyz/entity/otto-urbach-q111993252


## References

1. Virtual International Authority File
2. Integrated Authority File
3. BnF authorities
4. Catalogue of the Library of the Pontifical University of Saint Thomas Aquinas
5. Index Theologicus