Student of Law at the Law Faculty of the University Leipzig 1948 - 1952

Research Student at the Law Faculty of Humboldt Universität Berlin 1956 - 1959; Dr. jur. 1960

Director of a Foreign Trade Company in Berlin 1960 - 1962

Commercial Counsellor, Trade representation of the GDR in New Delhi, India 1962 - 1964

Reader in Law, Institute for Economic Law and International Trade Law, University of Economics Berlin 1964 - 1967
Habilitation as Dr. sc. oec. 1967

Professor for International Trade Law (International Economic Law), Institute for Foreign and Comparative Law, Academy for Political and Legal Science Potsdam-Babelsberg 1967 - 1990

Director of this Institute 1977 - 1989

In between: Senior Legal Officer, International Trade Law Branch, Office of Legal Affairs, United Nations New York and Vienna 1979 - 1981

Attorney of Law since 1990