SCHAPELHOUMAN, Marijn. Talking of Door Knockers. The Rijksmuseum Bulletin, [S. l.], v. 64, n. 2, p. 150–155, 2016. DOI: 10.52476/trb.9803. Disponível em: https://testplatform.openjournals.nl/the-rijksmuseum-bulletin/article/view/9803. Acesso em: 11 apr. 2026.