00299nam a2200121Ia 45000030006000000080041000060400015000471000017000622450031000792600038001105460012001480050017001600STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSingal, M.K.  aMathematics student vol 39  bIndian Mathematical Societyc1972  aEnglish20220125170027.0