00319nam a2200121Ia 45000030006000000080041000060400015000471000050000622450022001122600034001345460012001680050017001800STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSastri Raghava, T.R.; Surya Narayana Iyer, S.  aAnalytical conics  bSastri Raghava Iyer, S.c1954  aEnglish20220125170014.0