*Duncan Hallas, ''[https://www.marxists.org/archive/hallas/works/1973/01/reform.htm Do We Support Reformist Demands?]'', Socialisme international, 1973
*Duncan Hallas, ''[https://www.marxists.org/archive/hallas/works/1973/01/reform.htm Do We Support Reformist Demands?]'', Socialisme international, 1973