Neil Gregor, Daimler-Benz in the Third Reich (London, 1998), 54; Fritz Blaich, «Why Did the Pioneer Fall Behind? Motorization in Germany between the Wars», in Theo Barker (ed.), The Economic and Social Effects of the Spread of Motor Vehicles: An International Centenary Tribute (London, 1988), 148-64; Behnken (ed.), Deutschland-Berichte, VI (1939), 480-85; Mommsen and Grieger, Das Volkswagenwerk, 179-202 (цифры на стр. 197).
