# Karl Josef Barthels
**Wikidata**: [Q94618739](https://www.wikidata.org/wiki/Q94618739)  
**Source**: https://4ort.xyz/entity/karl-josef-barthels


## References

1. Catalog of the German National Library
2. Virtual International Authority File
3. Faceted Application of Subject Terminology
4. [Source](https://kalliope-verbund.info/DE-611-BF-117659)