00317nam a2200133Ia 45000030006000000080041000060400015000471000015000622450043000772500010001202600024001305460012001540050017001660STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGuas, H.J.  aThree phase power and its measurements  aFirst  bWiley Easternc1989  aEnglish20220125170154.0