# Jerzy Grzywacz
**Wikidata**: [Q95830154](https://www.wikidata.org/wiki/Q95830154)  
**Source**: https://4ort.xyz/entity/jerzy-grzywacz


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. Virtual International Authority File
4. NUKAT
5. MAK