00318nam a2200133Ia 4500008004100000020001500041082001600056100001700072245003800089250000800127260002500135300000900160650001500169221030s9999    xx            000 0 und d  a8120301625  a105.23bWag  aH. M. Wagner 0aPrinciples of Operations Research  a2ND  bPHIaNew Delhic2004  a1039  aManagement