# Vladimír Čtverák
**Wikidata**: [Q95221258](https://www.wikidata.org/wiki/Q95221258)  
**Source**: https://4ort.xyz/entity/vladim-r-tver-k


## References

1. Czech National Authority Database
2. Regional Database of the Central Bohemian Research Library in Kladno
3. Virtual International Authority File
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Bibliography of the History of the Czech Lands