# Karel Kupka

> researcher

**Wikidata**: [Q73825855](https://www.wikidata.org/wiki/Q73825855)  
**Source**: https://4ort.xyz/entity/karel-kupka-q73825855


## References

1. Czech National Authority Database
2. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-5805-068X/employment/4471516)
3. Virtual International Authority File
4. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-5805-068X/external-identifiers/781577)
5. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-5805-068X/external-identifiers/781579)
6. [Regional Database of the Central Bohemian Research Library in Kladno](https://ipac.svkkl.cz/arl-kl/cs/detail-kl_us_auth-0257351-Kupka-Karel-1939)