HUUSSEN JR., A.H. F. Püttmann, Markante Nederlandse zionisten. BMGN - Low Countries Historical Review, [S. l.], v. 112, n. 4, p. 573–574, 1997. DOI: 10.18352/bmgn-lchr.4603. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105299.. Acesso em: 17 aug. 2024.