Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q19587594 |
| RKDartists | https://rkd.nl/explore/artists/278778 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.83084 |
| Adamlink URI | https://adamlink.nl/person/polak-esther/5216 |
| WikiData URI | http://www.wikidata.org/entity/Q19587594 |
| RKDartists | https://rkd.nl/explore/artists/278778 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.83084 |
| Adamlink URI | https://adamlink.nl/person/polak-esther/5216 |