BIEMOND, D. J. Acquisitions: The Marjan and Gerard Unger Collection Jewellery by Twentieth-Century Dutch Jewellers, Goldsmiths, Silversmiths and Designers. The Rijksmuseum Bulletin, [S. l.], v. 58, n. 3, p. 266–303, 2010. DOI: 10.52476/trb.11628. Disponível em: https://bulletin.rijksmuseum.nl/article/view/11628. Acesso em: 19 may. 2024.