# Jan Krejcik
**Wikidata**: [Q112463638](https://www.wikidata.org/wiki/Q112463638)  
**Source**: https://4ort.xyz/entity/jan-krejcik


## References

1. Regional Database of the Central Bohemian Research Library in Kladno
2. Czech National Authority Database
3. datos.bne.es
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)