# Jaroslav Hahn
**Wikidata**: [Q55041374](https://www.wikidata.org/wiki/Q55041374)  
**Source**: https://4ort.xyz/entity/jaroslav-hahn-q55041374


## References

1. Czech National Authority Database
2. Students of the Universities of Prague 1882–1945
3. [Collection of Registry Books at Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=D2092B24F8614750B81E87173DE78806&scan=20#scan20)
4. Biographies of the Entomologists of the World