ROOS, M. de. G.N.M. Vis, M. Mostert, P.J. Margry, Heiligenlevens, annalen en kronieken. Geschiedschrijving in middeleeuws Egmond. BMGN - Low Countries Historical Review, [S. l.], v. 108, n. 3, p. 465–466, 1993. DOI: 10.18352/bmgn-lchr.3720. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104273. Acesso em: 20 apr. 2024.