Biemond DJ. Acquisitions: The Marjan and Gerard Unger Collection Jewellery by Twentieth-Century Dutch Jewellers, Goldsmiths, Silversmiths and Designers. RB [Internet]. 2010 Sep. 15 [cited 2024 May 19];58(3):266-303. Available from: https://bulletin.rijksmuseum.nl/article/view/11628