VAN LEEUWEN, Suzanne. Acquisitions: The Marjan and Gerard Unger Collection. The Rijksmuseum Bulletin, [S. l.], v. 66, n. 3, p. 270–277, 2018. DOI: 10.52476/trb.9759. Disponível em: https://testplatform.openjournals.nl/the-rijksmuseum-bulletin/article/view/9759. Acesso em: 11 apr. 2026.