Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q13137434 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/63129025 |
| RKDartists | https://rkd.nl/explore/artists/34026 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.28518 |
| VIAF | http://viaf.org/viaf/10117539 |
| Adamlink URI | https://adamlink.nl/person/groenia-petrus/5012 |
