# Jan Obrtel
**Wikidata**: [Q55680251](https://www.wikidata.org/wiki/Q55680251)  
**Source**: https://4ort.xyz/entity/jan-obrtel


## References

1. Integrated Authority File
2. Czech National Authority Database
3. [Students of the Universities of Prague 1882–1945](http://is.cuni.cz/webapps/archiv/public/person/se/1177313966813256)
4. BillionGraves
5. Students of the Universities of Prague 1882–1945