# Karl Bartels
**Wikidata**: [Q130371997](https://www.wikidata.org/wiki/Q130371997)  
**Source**: https://4ort.xyz/entity/karl-bartels


## References

1. Integrated Authority File
2. museum-digital
3. askArt
4. Virtual International Authority File
5. Artnet
6. Invaluable
7. artist-info