00324nam a2200133Ia 45000030006000000080041000060400015000471000016000622450053000782500010001312600020001415460012001610050017001730STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSinha, D.K.  aMathematical theory of electricity and magnetism  aFirst  bMacmillanc1977  aEnglish20220125170203.0