00309nam a2200133Ia 45000030006000000080041000060400015000471000025000622450030000872500011001172600018001285460012001460050017001580STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSehgal, D.L.; Others  aElectricity and magnetism  aSecond  bS.Chandc1977  aEnglish20220125170200.0