# Jerzy Piechowski
**Wikidata**: [Q16562865](https://www.wikidata.org/wiki/Q16562865)  
**Source**: https://4ort.xyz/entity/jerzy-piechowski


## References

1. BnF authorities
2. Catalog of the German National Library
3. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
4. Virtual International Authority File
5. Sejm-Wielki.pl
6. Regional Database of the Central Bohemian Research Library in Kladno