# Peter Hagen
**Wikidata**: [Q2079355](https://www.wikidata.org/wiki/Q2079355)  
**Source**: https://4ort.xyz/entity/peter-hagen-q2079355


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Répertoire International des Sources Musicales
4. CERL Thesaurus