WOLFFRAM, D. J.P. Zwemer, Zeeland 1945-1950. BMGN - Low Countries Historical Review, [S. l.], v. 119, n. 2, p. 293–294, 2004. DOI: 10.18352/bmgn-lchr.6075. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106965. Acesso em: 7 feb. 2023.