# Józef Kaja

> Polish historian

**Wikidata**: [Q104368644](https://www.wikidata.org/wiki/Q104368644)  
**Source**: https://4ort.xyz/entity/j-zef-kaja


## References

1. [Source](https://pl.prepedia.org/wiki/J%C3%B3zef_Kaja)
2. NUKAT
3. Polish Science