# Vratislav Jonáš
**Wikidata**: [Q29947905](https://www.wikidata.org/wiki/Q29947905)  
**Source**: https://4ort.xyz/entity/vratislav-jon-


## References

1. [Students of the Universities of Prague 1882–1945](http://is.cuni.cz/webapps/archiv/public/person/se/1108711036815363)
2. [Source](https://katalog.ahmp.cz/pragapublica/permalink?xid=A2CAFEC9F6B54825A2CD83D8881343AC&scan=181#scan181)
3. Czech National Authority Database
4. Students of the Universities of Prague 1882–1945
5. Virtual International Authority File