VAN LUTTERVELT, R. De brieventas van Napoleon . The Rijksmuseum Bulletin, [S. l.], v. 3, n. 4, p. 92–93, 1955. DOI: 10.52476/trb.21520. Disponível em: https://bulletin.rijksmuseum.nl/article/view/21520.. Acesso em: 10 mar. 2025.