# Jerzy Derfel

> Polish composer, pianist

**Wikidata**: [Q11724513](https://www.wikidata.org/wiki/Q11724513)  
**Source**: https://4ort.xyz/entity/jerzy-derfel


## References

1. Freebase Data Dumps
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Virtual International Authority File
4. MusicBrainz
5. [Source](https://filmpolski.pl/fp/index.php?osoba=115896)
6. Discogs
7. Virtual Study of Theatre Institute