Born 1949 in Ingolstadt. Study of mathematics and computer science at Munich Technical Univ. and Cornell Univ. Ithaca/USA, doctorate Cornell Univ. (1974), scientific collaborator of the Univ. of the Saar/Saarbrücken (1974-1975), Professor of Computer Science Univ. of the Saar/Saarbrücken (since 1975), Director and Scientific Member at the Max Planck Institute for Computer Science (since 1990); Cofounder (together with Stefan Näher and Christian Uhrig) Algorithmic Solutions GmbH (1995). Emertius.