# Bořivoj Petrák
**Wikidata**: [Q95489080](https://www.wikidata.org/wiki/Q95489080)  
**Source**: https://4ort.xyz/entity/bo-ivoj-petr-k


## References

1. Czech National Authority Database
2. [regional database of the Regional Library of Highlands](https://tritius.kkvysociny.cz/authority/1068606)
3. Virtual International Authority File
4. [Records of persons of interest](http://svazky.cz/test/svazkyMT.php?jmeno=Borivoj&prijm=Petrak&dnar=30.07.1926&hledej=Hledat)
5. [Source](http://svazky.cz/test/svazkyMT.php?jmeno=Borivoj&prijm=Petrak&dnar=30.07.1926&hledej=Hledat)
6. Bibliography of the History of the Czech Lands