00293nam a2200121Ia 45000030006000000080041000060400015000471000026000622450030000882600024001185460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aTiruvenkatacharya, V.  aElements of pure geometry  bS.Viswanathanc1958  aEnglish20220125170014.0