Buitenlandse politiek, 1919-1945. BMGN - Low Countries Historical Review, [S. l.], v. 101, n. 2, p. 219–223, 1986. DOI: 10.18352/bmgn-lchr.2698. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102927.. Acesso em: 14 jul. 2024.