ROOY, P. de. F. Wielenga, Nederland in de twintigste eeuw. BMGN - Low Countries Historical Review, [S. l.], v. 126, n. 1, p. 127–128, 2011. DOI: 10.18352/bmgn-lchr.7256. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108290.. Acesso em: 19 jul. 2024.