# Jaroslav Heyduk
**Wikidata**: [Q50359336](https://www.wikidata.org/wiki/Q50359336)  
**Source**: https://4ort.xyz/entity/jaroslav-heyduk-q50359336


## References

1. [Collection of Registry Books at Prague City Archives](http://katalog.ahmp.cz/pragapublica/permalink?xid=3CEBCDA5B6EC4BDB9B946D37B8F7E8D4&scan=350#scan350)
2. Virtual International Authority File
3. Legie 100
4. [Проза.ру](https://proza.ru/2016/07/03/392)