JANSEN, H. J.A. van Houtte, Un quart de siècle de recherche historique en Belgique: 1944-1968. BMGN - Low Countries Historical Review, [S. l.], v. 86, n. 3, p. 415–415, 1971. DOI: 10.18352/bmgn-lchr.1689. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-101849. Acesso em: 2 may. 2024.