Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q16801520 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/88713325 |
| RKDartists | https://rkd.nl/explore/artists/52897 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.30160 |
| VIAF | http://viaf.org/viaf/95879914 |
| Adamlink URI | https://adamlink.nl/person/martens-willy/4204 |
