# Johannes Janssen

> Johannes Janssen, ALTANA Kulturstiftung

**Wikidata**: [Q117848499](https://www.wikidata.org/wiki/Q117848499)  
**Source**: https://4ort.xyz/entity/johannes-janssen-q117848499


## References

1. Integrated Authority File
2. The Fine Art Archive
3. Virtual International Authority File
4. BnF authorities
5. IdRef
6. NUKAT
7. International Standard Name Identifier
8. Catalogue of the Rijksmuseum Research Library
9. National Library of Israel Names and Subjects Authority File