HOLTHOON, F. van. G.J. Hooykaas, De briefwisseling van J. R. Thorbecke, III, 1836-1840. BMGN - Low Countries Historical Review, [S. l.], v. 105, n. 3, p. 452–453, 1990. DOI: 10.18352/bmgn-lchr.3272. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103723. Acesso em: 6 may. 2024.