SCHMIDT, V. M.; GUDWIN, M. De zogenaamde bisschopszetel in de Cunerakerk te Rhenen. Bulletin KNOB, [S. l.], v. 90, n. 5, p. 175–179, 1991. DOI: 10.7480/knob.90.1991.5.545. Disponível em: https://bulletin.knob.nl/index.php/knob/article/view/Schmidt175. Acesso em: 8 mei. 2024.