00317nam a2200109Ia 4500008004100000041000800041100004000049245004800089260003400137650001500171999002100186240109s9999    xx            000 0 und d  aeng  aPhillips D. Ravindran A. Solberg J.  aOperations Research Principles and Practice  bJohn Wiley and Sons New York   aManagement  c1019640d1019640