00298nam a2200121Ia 45000030006000000080041000060400015000471000018000622450045000802600022001255460012001470050017001590STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aLipschutz, S.  aTheory and problems of complex variables  bMcgraw hillc1974  aEnglish20220125170125.0