C.B. Smithuijsen, De hulpbehoevende mecenas. Particulier initiatief, overheid en cultuur, 1940-1990. BMGN - Low Countries Historical Review, [S. l.], v. 108, n. 1, p. 112–114, 1993. DOI: 10.18352/bmgn-lchr.3641. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104174.. Acesso em: 16 sep. 2024.