DE LEEUW, Ronald. Peter Sigmond. The Rijksmuseum Bulletin, [S. l.], v. 56, n. 3, p. 276–285, 2007. DOI: 10.52476/trb.17982. Disponível em: https://bulletin.rijksmuseum.nl/article/view/17982.. Acesso em: 20 sep. 2024.