Jansen, H.P.H. “M.K.E. Gottschalk, Stormvloeden En Rivieroverstromingen in Nederland, I, De Periode vóór 1400”. BMGN - Low Countries Historical Review 86, no. 3 (January 1, 1971): 416–417. Accessed November 21, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-101850.