KOSSMANN, E. G.J. Hooykaas, De briefwisseling van J. R. Thorbecke, I, 1830-1833. BMGN - Low Countries Historical Review, [S. l.], v. 92, n. 1, p. 112–114, 1977. DOI: 10.18352/bmgn-lchr.1981. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102144. Acesso em: 28 jan. 2023.