00306nam a2200133Ia 45000030006000000080041000060400015000471000023000622450038000852500011001232600009001345460012001430050017001550STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aHarvery Wagner, M.  aPrinciples of operations research  aSecond  c1978  aEnglish20220125170605.0