00297nam a2200121Ia 45000030006000000080041000060400015000471000024000622450037000862600023001235460012001460050017001580STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aCaruthers Peter, A.  aIntroduction to unitary symmetry  bIntersciencec1966  aEnglish20220125170030.0