# Otakar Rybák
**Wikidata**: [Q60821001](https://www.wikidata.org/wiki/Q60821001)  
**Source**: https://4ort.xyz/entity/otakar-ryb-k


## References

1. Czech National Authority Database
2. [Students of the Universities of Prague 1882–1945](http://is.cuni.cz/webapps/archiv/public/person/se/1852834164990630)
3. Catalog of the German National Library
4. [Source](https://www.biographien.ac.at/oebl/oebl_R/Rybak_Otakar_1886_1934.xml)
5. Alvin
6. Encyclopedia of Brno History