# Werner Ustorf
**Wikidata**: [Q93234082](https://www.wikidata.org/wiki/Q93234082)  
**Source**: https://4ort.xyz/entity/werner-ustorf


## References

1. Catalogue of the Library of the Pontifical University of the Holy Cross
2. IdRef
3. Catalog of the German National Library
4. Virtual International Authority File
5. CiNii Research
6. VIAF ID
7. Catalogo of the National Library of India