# Leon Ružička
**Wikidata**: [Q60820994](https://www.wikidata.org/wiki/Q60820994)  
**Source**: https://4ort.xyz/entity/leon-ru-i-ka


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](https://www.biographien.ac.at/oebl/oebl_R/Ruzicka_Leon_1866_1931.xml)
4. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_R/Ruzicka_Leon_1866_1931.xml)
5. Virtual International Authority File