# Karlheinz Biller
**Wikidata**: [Q93233915](https://www.wikidata.org/wiki/Q93233915)  
**Source**: https://4ort.xyz/entity/karlheinz-biller


## References

1. BnF authorities
2. Integrated Authority File
3. Virtual International Authority File
4. Faceted Application of Subject Terminology
5. CiNii Research
6. Catalogue of the Library of the Pontifical University of the Holy Cross