J. Polasky, The democratic socialism of Emile Vandervelde. Between reform and revolution. BMGN - Low Countries Historical Review, [S. l.], v. 113, n. 1, p. 127–128, 1998. DOI: 10.18352/bmgn-lchr.4657. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105353.. Acesso em: 14 jul. 2024.