Doctor of Philosophy, Free University, Berlin, 1966. D. Hab, Free University, Berlin, 1973.
Research assistant Free University, Berlin, 1963-1966, assistant professor, 1966-1969. Kennedy fellow Harvard University, Cambridge, Massachusetts, 1969-1971. Professor University Hamburg, Federal Republic Germany, 1971-1972, University Goettingen, Federal Republic Germany, since 1973.
Board directors Bundeszentrale für Politische Bildung, Bonn, Federal Republic Germany. Member American Political Science Association, American History Association, German Political Science Association (vice president 1973-1975), Industrial and Labor Relations Research Association, History Commission Berlin.
Married Christel Stüber, March 31, 1969. Children: Daniel, Nina-Suzanne.