1.
S. Bloemgarten, Henri Polak, sociaal democraat, 1868-1943. BMGN-LCHR [Internet]. 1995 Jan. 1 [cited 2024 Nov. 22];110(1):141-3. Available from: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104584