E. Vanhaute, Heiboeren. Bevolking, arbeid en inkomen in de 19de-eeuwse Kempen. BMGN - Low Countries Historical Review, [S. l.], v. 109, n. 4, p. 674–675, 1994. DOI: 10.18352/bmgn-lchr.3929. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104522.. Acesso em: 18 jul. 2024.