# Hans-Joachim Ketelsen

> German opera singer

**Wikidata**: [Q52828174](https://www.wikidata.org/wiki/Q52828174)  
**Source**: https://4ort.xyz/entity/hans-joachim-ketelsen


## References

1. Integrated Authority File
2. Virtual International Authority File
3. [Source](http://www.operone.de/repro/reprok.php?seite=3)