00313nam a2200133Ia 45000030006000000080041000060400015000471000027000622450036000892600019001253000006001445460012001500050017001620STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aAndreescu T;Enescu, B.  aMathematical Olympiad Treasures  c2005aNew York  a0  aEnglish20220125170028.0