This article was written in May 1920 and was first published in the German paper Die Aktion. This translation first appeared in the London Workers' Group bulletin (no. 14, October 1983). A different english translation was published in the American journal Revolutionary Struggle, No. 2, Spring 1979.
A 1974 dissertation on various left-wing radical groups in Weimar Republic era Germany.
Issue 3 of the magazine of Solidarity (Aberdeen) with articles on Consolidated Pneumatic, the KAPD and the German revolution, housing in Aberdeen, technology and workers' control. From around 1968.
Notes by Claudio Pozzoli on Paul Mattick, council communism and in particular its differences with left communism.
Report from the Congress of the Third International in Moscow by Otto Ruhle of the Communist Workers Party of Germany (KAPD).