# Otto Barthel
**Wikidata**: [Q94891293](https://www.wikidata.org/wiki/Q94891293)  
**Source**: https://4ort.xyz/entity/otto-barthel


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-117658)
4. Virtual International Authority File