Fred Krger:Since 1971 working in Computer Science1980-1986 Professor for Computer Science at Technical University of MunichSince 1986 Professor for Computer Science at University of Munich1987 World-wide first textbook on Temporal Logic ("Temporal Logic of Programs", Springer)Stephan Merz:1992 Ph.D. in Computer Science, University of Munich1995-2002 Assistant Professor for Computer Science, University of Munichsince 2002 Senior Researcher, INRIA Lorraine, Nancy