C. Hoogslag, Vastmaken. Geschiedenis van de Rotterdamse havensleepvaart. BMGN - Low Countries Historical Review, [S. l.], v. 96, n. 3, p. 545–545, 1981. DOI: 10.18352/bmgn-lchr.2280. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102467.. Acesso em: 18 jul. 2024.