# Piotr Kowalski

> Polish teacher

**Wikidata**: [Q11817671](https://www.wikidata.org/wiki/Q11817671)  
**Source**: https://4ort.xyz/entity/piotr-kowalski-q11817671


## References

1. [BnF authorities](https://catalogue.bnf.fr/ark:/12148/cb122197750)
2. [Source](https://nauka-polska.pl/#/profile/research?id=213160)
3. [Source](https://nauka-polska.pl/#/profile/research?id=50090)
4. general catalog of BnF
5. Virtual International Authority File
6. Polish Science
7. BnF authorities
8. NUKAT
9. MAK
10. Library of Congress Authorities
11. [Source](https://nauka-polska.pl/#/profile/scientist?id=13705)