BRUIN, R. de. D. Aten, J. Drewes, Geschiedenis van Alkmaar. BMGN - Low Countries Historical Review, [S. l.], v. 124, n. 1, p. 90–91, 2009. DOI: 10.18352/bmgn-lchr.6900. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107940. Acesso em: 8 feb. 2023.