PELT, W. M. Keyser, J.F. Heijbroek, I. Verheul, Frederik Muller (1817-1881). Leven en werken. BMGN - Low Countries Historical Review, [S. l.], v. 113, n. 4, p. 572–573, 1998. DOI: 10.18352/bmgn-lchr.4850. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105572.. Acesso em: 17 aug. 2024.