ao. Prof. Dr. Gernot Tragler
Research Unit "Operations Research and Control Systems"
Institute of Statistics and Mathematical Methods in Economics
Vienna University of Technology
Wiedner Hauptstraße 8/E105-4, A-1040 Vienna, Austria
Tel.: + 43 1 58801-10542
FAX: +43 1 58801-910542
E-mail: gernot.tragler@tuwien.ac.at