Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q21638369 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/59206902 |
| Ecartico | http://www.vondel.humanities.uva.nl/ecartico/persons/5812 |
| RKDartists | https://rkd.nl/explore/artists/92264 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.84524 |
| Rijksmuseum Amsterdam | urn:rijksmuseum:people:RM0001.PEOPLE.70170 |
| VIAF | http://viaf.org/viaf/18286609 |
| Adamlink URI | https://adamlink.nl/person/ottens-joachim/3415 |
