Anthony McElligott, ‘Mobilising the Unemployed: The KPD and the Unemployed Workers' Movement in Hamburg-Altona during the Weimar Republic’ в Evans and Geary (eds.), The German Unemployed, 228-60; Michael Schneider, Unterm Hakenkreuz: Arbeiter und Arbeiterbewegung 1933 bis 1939 (Bonn, 1999), 47–52.
