Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q2145950 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/29828235 |
| RKDartists | https://rkd.nl/explore/artists/87898 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.59216 |
| VIAF | http://viaf.org/viaf/12540312 |
| Adamlink URI | https://adamlink.nl/person/westendorp-fiep/3503 |
