# Jan Hradecký

> Czech geologist

**Wikidata**: [Q62713304](https://www.wikidata.org/wiki/Q62713304)  
**Source**: https://4ort.xyz/entity/jan-hradeck-


## References

1. BnF authorities
2. Czech National Authority Database
3. [ORCID Public Data File 2023](https://pub.orcid.org/v3.0/0000-0003-3228-0492/employment/14040168)
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. [Czech National Authority Database](https://aleph.nkp.cz/data/cnb.xml.gz)
6. IdRef
7. Virtual International Authority File
8. Bibliography of the History of the Czech Lands