00260nam a2200121Ia 45000030006000000080041000060400015000471000016000622450022000782600009001005460012001090050017001210STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aBeard, D.B.  aQuantum mechanics  c1963  aEnglish20220125170133.0