# Karel Šonka

> researcher

**Wikidata**: [Q30500706](https://www.wikidata.org/wiki/Q30500706)  
**Source**: https://4ort.xyz/entity/karel-onka


## References

1. Czech National Authority Database
2. [Source](https://www.medvik.cz/bmc/link.do?id=jn99240001644)
3. [Source](https://orcid.org/0000-0001-5773-9656)
4. Virtual International Authority File
5. [SciGraph](https://scigraph.springernature.com/person.01031603432.65)
6. [Regional Database of the Central Bohemian Research Library in Kladno](https://ipac.svkkl.cz/arl-kl/cs/detail-kl_us_auth-p0020064-sonka-Karel-1957)