# Ondřej Ditrych

> research fellow in security

**Wikidata**: [Q55841610](https://www.wikidata.org/wiki/Q55841610)  
**Source**: https://4ort.xyz/entity/ond-ej-ditrych


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. [IS VaVaI](https://api.isvavai.cz/)
4. NUKAT
5. Bibliography of the History of the Czech Lands
6. MAK