Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q71505 |
| RKDartists | https://rkd.nl/explore/artists/47907 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.78341 |
| VIAF | http://viaf.org/viaf/36975085 |
| Adamlink URI | https://adamlink.nl/person/lange-ludwig/4311 |
