^V. František. The German Zone of Protection in Slovakia: A Study in Slovak-German Relations in March–August 1939.Slovakia 9, no. 4 (March 1959), pp. 7-23.
^ 2.02.1A. von Plato,A. Leh,C. Thonfeld (ed) (2010). Hitler's Slaves: Life Stories of Forced Labourers in Nazi-Occupied Europe, Berghahn Books, ISBN1-84545-698-X, p. 70