# Jaroslav Hak

> Czech mineralogist, Institute of Ore Research, Kutna Hora

**Wikidata**: [Q95138811](https://www.wikidata.org/wiki/Q95138811)  
**Source**: https://4ort.xyz/entity/jaroslav-hak


## References

1. Czech National Authority Database
2. [Records of persons of interest](http://svazky.cz/test/svazkyMT.php?jmeno=Jaroslav&prijm=Hak&dnar=12.03.1931&hledej=Hledat)
3. Regional Database of the Central Bohemian Research Library in Kladno
4. Virtual International Authority File
5. [Source](http://svazky.cz/test/svazkyMT.php?jmeno=Jaroslav&prijm=Hak&dnar=12.03.1931&hledej=Hledat)