00315nam a2200133Ia 45000030006000000080041000060400015000471000015000622450043000772500010001202600022001305460012001520050017001640STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBeiser, A.  aThoery and problems of applied physics  aFirst  bMcgraw hillc1976  aEnglish20220125170117.0