00330nam a2200133Ia 45000030006000000080041000060400015000471000023000622450041000852600035001263000006001615460012001670050017001790STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKlamkin Murray, S.  aUSA mathematical olympiads 1972-1986  bMathematical Associationc1986  a0  aEnglish20220125170029.0