# Jaroslav Otakar Hruška
**Wikidata**: [Q64933950](https://www.wikidata.org/wiki/Q64933950)  
**Source**: https://4ort.xyz/entity/jaroslav-otakar-hru-ka


## References

1. Czech National Authority Database
2. [The Fine Art Archive](https://cs.isabart.org/person/71628)
3. [regional database of the Regional Library of Highlands](https://tritius.kkvysociny.cz/authority/1064684)
4. [regional database of the  Research Library in Hradec Králové](https://aleph.svkhk.cz/F/?func=direct&doc_number=000056797&local_base=hka10&format=999)
5. [regional database of the  Research Library in Hradec Králové](https://www.svkhk.cz/tools/vyroci.asp?zobr=fulllist)
6. The Fine Art Archive
7. [Český bratr](http://www.digitalniknihovna.cz/mzk/view/uuid:818dc0d1-a4dc-11e6-b707-005056827e51?page=uuid:3bc44d20-a4e7-11e6-8bf1-001018b5eb5c)
8. Virtual International Authority File