00307nam a2200133Ia 45000030006000000080041000060400015000471000022000622450041000842500010001252600009001355460012001440050017001560STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAlexandroff, P.S.  aIntroduction to the theory of groups  aFirst  c1959  aEnglish20220125165924.0