O.W. Dubois, Reddende liefde. Het werk van de Helderingstichtingen in Zetten 1847-2010. BMGN - Low Countries Historical Review, [S. l.], v. 128, n. 1, p. review 7, 2013. DOI: 10.18352/bmgn-lchr.8142. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-109857.. Acesso em: 30 jun. 2024.