In gesprek met Gert Dumbar. The Rijksmuseum Bulletin, [S. l.], v. 33, n. 3, p. 176–191, 1985. DOI: 10.52476/trb.20792. Disponível em: https://bulletin.rijksmuseum.nl/article/view/20792.. Acesso em: 5 feb. 2025.