«Godesberg Program of the SPD (November 1959)»(PDF) (em inglês). German History in Documents and Imagens. Consultado em 29 de novembro de 2013 Source reprinted in Jan Goldstein and John W. Boyer, eds, University of Chicago, Readings in Western Civilization, vol. 9 Chicago, London: University of Chicago Press, 1987, pp. 419-25.
Duncan Hallas (1973). «Do We Support Reformist Demands?». Controversy: Do we support reformist demands?. International Socialism. Consultado em 14 de novembro de 2013
