00298nam a2200109Ia 4500008004100000041000800041100002600049245004100075260003600116650001500152999002100167240109s9999    xx            000 0 und d  aeng  aWhitehouse  Wechsler.  aApplied Operation Research A Survey.  bJohn Wiley and Sons New  York.   aManagement  c1019896d1019896