00321nam a2200133Ia 45000030006000000080041000060400015000471000032000622450049000942600009001433000006001525460012001580050017001700STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aNatanson, J.P.;Boron Leo Tr  aTheory of functions of a real variable vol I  c1964  a0  aEnglish20220125165959.0