Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q2453970 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/87185225 |
| RKDartists | https://rkd.nl/explore/artists/45323 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.29569 |
| VIAF | http://viaf.org/viaf/95729621 |
| Adamlink URI | https://adamlink.nl/person/koelman-johan-philip/4394 |
