Touwen, Jeroen. “Jacques Van Gerwen, F. De Goey, Ondernemers in Nederland. Variaties in Ondernemen”. BMGN - Low Countries Historical Review 125, no. 4 (January 1, 2010): 145–147. Accessed June 27, 2022. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108203.