00302nam a2200121Ia 45000030006000000080041000060400015000471000020000622450031000822600038001135460012001510050017001630STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSingal, M.K. Ed  aMathematics student vol 40  bIndian Mathematical Societyc1972  aEnglish20220125170027.0