00290nam a2200109Ia 4500008004100000041000800041100002600049245004100075260003700116365000800153999001900161231011s9999    xx            000 0 und d  aeng  aWhitehouse  Wechsler.  aApplied Operation Research A Survey.  bJohn Wiley and Sons New  York. -  b139  c883485d883485