00317nam a2200133Ia 45000030006000000080041000060400015000471000020000622450039000822500011001212600022001325460012001540050017001660STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aChurchill, R.V.  aComplex variables and applications  aSecond  bMcgraw hillc1960  aEnglish20220125170127.0