# Karlrobert Ringel

> Ringel, Karlrobert

**Wikidata**: [Q95007415](https://www.wikidata.org/wiki/Q95007415)  
**Source**: https://4ort.xyz/entity/karlrobert-ringel


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Catalog of the German National Library
4. Galerie der Professorin­nen und Professoren der Universität zu Köln