Raymaekers, P. “H. Renders (ed.), Onder Ingenieurs. Biografie & Techniek”. BMGN - Low Countries Historical Review 126, no. 3 (January 1, 2011): 88–89. Accessed December 22, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108358.