# Leszek Olejnik

> Polish historian

**Wikidata**: [Q16571680](https://www.wikidata.org/wiki/Q16571680)  
**Source**: https://4ort.xyz/entity/leszek-olejnik


## References

1. Czech National Authority Database
2. [ORCID Public Data File 2023](https://pub.orcid.org/v3.0/0000-0002-7404-9507/employment/14913546)
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Virtual International Authority File
5. Polish Science