# Zbyněk Petráček
**Wikidata**: [Q19602881](https://www.wikidata.org/wiki/Q19602881)  
**Source**: https://4ort.xyz/entity/zbyn-k-petr-ek


## References

1. Czech National Authority Database
2. Bibliography of the History of the Czech Lands
3. [Regional Database of the Central Bohemian Research Library in Kladno](https://ipac.svkkl.cz/arl-kl/cs/detail-kl_us_auth-0259638-Petracek-Zbynek-1959)