# Jan Krejsek

> researcher

**Wikidata**: [Q85267131](https://www.wikidata.org/wiki/Q85267131)  
**Source**: https://4ort.xyz/entity/jan-krejsek


## References

1. Czech National Authority Database
2. [regional database of the  Research Library in Hradec Králové](https://www.svkhk.cz/tools/vyroci.asp?zobr=fulllist)
3. [regional database of the Municipal Library of Hradec Kralove](https://kmhk.tritius.cz/authority/2026560)
4. [IS VaVaI](https://api.isvavai.cz/)
5. Virtual International Authority File