Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q2397082 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/71901885 |
| RKDartists | https://rkd.nl/explore/artists/72909 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.32017 |
| VIAF | http://viaf.org/viaf/202424339 |
| Adamlink URI | https://adamlink.nl/person/sjollema-joop/3813 |
