00322nam a2200145Ia 45000030006000000080041000060400015000471000021000622450038000832500011001212600009001323000006001415460012001470050017001590STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aWagner Hurry, M.  aPrinciples of operations research  aSecond  c1989  a0  aEnglish20220125170051.0