00341nam a2200145Ia 45000030006000000080041000060400015000471000018000622450047000802500011001272600022001383000006001605460012001660050017001780STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aChurchill, V.  aFourier series and boundary value problems  aSecond  bMcgraw hillc1963  a0  aEnglish20220125165956.0