B.H. van den Braak, De Eerste Kamer. Geschiedenis, samenstelling en betekenis 1815-1995. BMGN - Low Countries Historical Review, [S. l.], v. 115, n. 1, p. 134–135, 2000. DOI: 10.18352/bmgn-lchr.5176. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105938.. Acesso em: 1 jul. 2024.