00291nam a2200121Ia 45000030006000000080041000060400015000471000021000622450040000832600017001235460012001400050017001520STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSteel Elliot, R.  aPractical electricity and magnetism  bG.Bellc1910  aEnglish20220125170200.0