# Eugen Jóna
**Wikidata**: [Q95153481](https://www.wikidata.org/wiki/Q95153481)  
**Source**: https://4ort.xyz/entity/eugen-j-na


## References

1. Czech National Authority Database
2. BnF authorities
3. Virtual International Authority File
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. VIAF ID
6. VcBA (identifier)
7. NUKAT
8. Bibliography of the History of the Czech Lands