SCHOLTEN, Frits. Ketel and De Keyser. The Rijksmuseum Bulletin, [S. l.], v. 69, n. 4, p. 358–367, 2021. DOI: 10.52476/trb.11392. Disponível em: https://testplatform.openjournals.nl/the-rijksmuseum-bulletin/article/view/11392. Acesso em: 11 apr. 2026.