# Hans Hermann Koopmann
**Wikidata**: [Q29175614](https://www.wikidata.org/wiki/Q29175614)  
**Source**: https://4ort.xyz/entity/hans-hermann-koopmann


## References

1. [ADAGP directory](https://www.adagp.fr/fr/mysearch/rp_rights?keyword=Hans+Hermann+Koopmann)
2. DACS register
3. ADAGP directory