# Jaroslav Frei
**Wikidata**: [Q95171632](https://www.wikidata.org/wiki/Q95171632)  
**Source**: https://4ort.xyz/entity/jaroslav-frei


## References

1. Czech National Authority Database
2. [Students of the Universities of Prague 1882–1945](http://is.cuni.cz/webapps/archiv/public/person/se/1484241281416355)
3. Virtual International Authority File
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Students of the Universities of Prague 1882–1945
6. Bibliography of the History of the Czech Lands
7. [Regional Database of the Central Bohemian Research Library in Kladno](https://ipac.svkkl.cz/arl-kl/cs/detail-kl_us_auth-0279256-Frei-Jaroslav-19041981)