00253nam a2200109Ia 4500008004100000020001800041100001400059245004000073250000800113260001400121300000800135160921s9999    xx            000 0 und d  a81-203-2235-5  aTAHA  H A  aOPERATIONS RESEARCH An Introduction  a7th  bPHIc2003  a830