KOOT, Ton. Bespiegeling over de bezoekcijfers. The Rijksmuseum Bulletin, [S. l.], v. 6, n. 3-4, p. 73–82, 1958. DOI: 10.52476/trb.21446. Disponível em: https://bulletin.rijksmuseum.nl/article/view/21446.. Acesso em: 26 dec. 2024.