Essen, H.W. van. “U. Jansz, Denken over Sekse in De Eerste Feministische Golf”. BMGN - Low Countries Historical Review 108, no. 1 (January 1, 1993): 96–98. Accessed April 25, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104165.