00289nam a2200121Ia 45000030006000000080041000060400015000471000037000622450030000992600009001295460012001380050017001500STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aChattopadhyay, D.; Rakshit, P.C.  aElectricity and magnetism  c1990  aEnglish20220125170115.0