00269nam a2200121Ia 45000030006000000080041000060400015000471000019000622450028000812600009001095460012001180050017001300STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRamanathan, A.  aCourse of pure geometry  c1945  aEnglish20220125165945.0