“R. Koole, De Opkomst Van De Moderne Kaderpartij. Veranderende Partijorganisatie in Nederland 1960-1990”. BMGN - Low Countries Historical Review 110, no. 1 (January 1, 1995): 155–156. Accessed June 30, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104593.