BRUIN, R. de. Dr. Hans Max Hirschfeld, man zonder moreel kompas? Over de ontsporing van beeldvorming. BMGN - Low Countries Historical Review, [S. l.], v. 123, n. 3, p. 433–445, 2008. DOI: 10.18352/bmgn-lchr.6849. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107841. Acesso em: 22 oct. 2021.