Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q1539683 |
| RKDartists | https://rkd.nl/explore/artists/124943 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.29419 |
| VIAF | http://viaf.org/viaf/20512063 |
| Adamlink URI | https://adamlink.nl/person/keller-josef/7487 |
