00272nam a2200121Ia 45000030006000000080041000060400015000471000014000622450036000762600009001125460012001210050017001330STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aOgg, A.P.  aAmerican journal of mathematics  c1965  aEnglish20220125170026.0