# Jan Piątkowski
**Wikidata**: [Q125165451](https://www.wikidata.org/wiki/Q125165451)  
**Source**: https://4ort.xyz/entity/jan-pi-tkowski-q125165451


## References

1. Catalog of the German National Library
2. [Source](https://usosweb.umk.pl/kontroler.php?_action=katalog2/osoby/pokazOsobe&os_id=24650)
3. Czech National Authority Database
4. Virtual International Authority File
5. NUKAT
6. MAK
7. Polish Science