# Borys Halpert
**Wikidata**: [Q9177924](https://www.wikidata.org/wiki/Q9177924)  
**Source**: https://4ort.xyz/entity/borys-halpert


## References

1. Répertoire International des Sources Musicales
2. NUKAT
3. MAK
4. e-teatr.pl
5. Virtual International Authority File
6. Sejm-Wielki.pl