Carl Denig, Van aakschipper tot zwikker. Gids van historische beroepen. TSEG - The Low Countries Journal of Social and Economic History, [S. l.], v. 2, n. 1, p. 142–143, 2005. DOI: 10.18352/tseg.729. Disponível em: https://tseg.nl/article/view/7999.. Acesso em: 3 jul. 2024.