P. Heyrman, Middenstandsbeweging en beleid in België 1918-1940. Tussen vrijheid en regulering. BMGN - Low Countries Historical Review, [S. l.], v. 115, n. 4, p. 645–647, 2000. DOI: 10.18352/bmgn-lchr.5383. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106167.. Acesso em: 22 nov. 2024.