“Een Kleine Mogendheid in De Grote Politiek. België’s Buitenlands Beleid (1830-1940)”. BMGN - Low Countries Historical Review 89, no. 3 (January 1, 1974): 412–421. Accessed November 25, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-101996.