00323nam a2200121Ia 45000030006000000080041000060400015000471000024000622450051000862600035001375460012001720050017001840STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGreitzer Samuel, L.  aInternational mathematical olympiads 1959-1977  bMathematical Associationc1978  aEnglish20220125170029.0