van der Velden, Sjaak. “Erik Van Ree, Wereldrevolutie. De Communistische Beweging Van Marx Tot Kim Jong Il”. TSEG - The Low Countries Journal of Social and Economic History 3, no. 1 (March 15, 2006): 130–132. Accessed April 11, 2026. https://testplatform.openjournals.nl/tseg/article/view/7929.