WELS, C. M.W. Jurriaanse, De Nederlandse ministers van Buitenlandse Zaken 1813-1900. BMGN - Low Countries Historical Review, [S. l.], v. 91, n. 2, p. 318–319, 1976. DOI: 10.18352/bmgn-lchr.1949. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102111. Acesso em: 19 jan. 2022.