Madajczyk, Czesław. “Die Besatzungsungssysteme Der Achsenmächte. Versuch Einer Komparativen Analyse [The Occupation Systems of the Axis Powers. An Attempt at a Comparative Analysis]”. Studia Historiae Oeconomicae, vol. 14, no. 1, June 1979, pp. 105-22, doi:10.14746/sho.1979.14.1.008.