1. ?Altschulden Ost ? Eine schwere Last? (1991),Informationsdienst des Instituts der deutschen Wirtschaft, vol. 17, n. 39, pp. 6?7.
2. Bethkenhagen J. (1991),The Privatisation and structural change in the economic transformation of Eastern Germany, paper presented at the 8th German-Korean Conference on Consequences of German Unification and its Implications for a Divided Korea, Seoul.
3. Breuel B. (1991), ?Der Auftrag der Treuhandanstalt?,Wirtschaftsdienst, n. IV, pp. 163?165.
4. Brezinski H. (1987), ?The Second Economy in the GDR -Pragmatism is Gaining Ground?,Studies in Comparative Communism, vol. XX, n. 1, pp. 85?101.
5. Brezinski H. (1991a), ?Problems of the Trasformation of the East German Economic System?, in Kim D., Gumpel W., Kindermann G.K. and K. Jung (eds),Europe in Transition and The Korean Peninsula, pp. 73?94, Institute of East and West Studies, Yonsei University, Seoul.