00290nam a2200133Ia 45000030006000000080041000060400015000471000020000622450026000822500010001082600009001185460012001270050017001390STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMendelssohn, K.  aWhat is atomic energy  aFirst  c1946  aEnglish20220125170222.0