Bruin, R.E. de. “D. Aten, J. Drewes, Geschiedenis Van Alkmaar”. BMGN - Low Countries Historical Review 124, no. 1 (January 1, 2009): 90–91. Accessed April 24, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107940.