Identifiers
| WikiData URI | http://www.wikidata.org/entity/Q2400214 |
| Biografisch Portaal | http://www.biografischportaal.nl/persoon/42459868 |
| RKDartists | https://rkd.nl/explore/artists/72462 |
| Amsterdam Museum | http://hdl.handle.net/11259/people.23884 |
| VIAF | http://viaf.org/viaf/54736303 |
| Adamlink URI | https://adamlink.nl/person/sieger-frits/2163 |
