Herman Langeveld, De man die in de put sprong. Willem Schermerhorn 1894-1977. TSEG - The Low Countries Journal of Social and Economic History, [S. l.], v. 11, n. 3, p. 215–217, 2014. DOI: 10.18352/tseg.165. Disponível em: https://tseg.nl/article/view/7435.. Acesso em: 3 jul. 2024.