# Josef Berka
**Wikidata**: [Q95434655](https://www.wikidata.org/wiki/Q95434655)  
**Source**: https://4ort.xyz/entity/josef-berka-q95434655


## References

1. [The Fine Art Archive](https://cs.isabart.org/person/77967)
2. [regional database of the Pilsen City Library](https://tritius.plzen.eu/authority/103176)
3. Czech National Authority Database
4. Virtual International Authority File
5. The Fine Art Archive
6. Bibliography of the History of the Czech Lands