Main research interests Combinatorial Optimization and Parallelism Problems Vehicle Routing with Time Windows Crew Rostering Set Covering/Set Partitioning Maximum Clique Methods Tabu Search Lagrange Relaxation Constraint Programming (Some introductory material) Column Generation Activities Programm Commitee for CP-AI-OR 2003 Programm Commitee for the SymCon'02 workshop at CP'02 Guest Editor (together with Ulrich Junker (ILOG) and Stefan Karisch (Annals of Operations Research Volumen 115 on Integration of Constraint Programming, Artificial Intelligence and Operations Research Methods. (see CFP) Local Organizer CP-AI-OR '00 March 8-10, 2000 University of Paderborn Dept. of Math. & Comp. Sci. Fürstenallee 11 D-33102 Paderborn Germany Office: Phone: Fax: E-mail: Phone (priv.): F2.315 +49 (5251) 60 6692 +49 (5251) 60 6697 tef@uni-paderborn.de