KAREL, Erwin H. De maakbaarheid van boer en gezin. Streekverbetering in Nederland 1956-1970. TSEG - The Low Countries Journal of Social and Economic History, [S. l.], v. 4, n. 4, p. 161–184, 2007. DOI: 10.18352/tseg.632. Disponível em: https://testplatform.openjournals.nl/tseg/article/view/7902. Acesso em: 11 apr. 2026.