000 00553 a2200181 4500
001 131794
003 OSt
005 20210917111422.0
008
082 _a510.76
_bA25M
100 1 _aAndreescu, Titu
245 1 _aMathematical olympiad challenges
_cby Titu Andreescu and Razvan Gelca
260 _aNew york
_bSpringer
_c2007
300 _a260p.
690 _aMathematics; Number theory; Algebra; Geometry; Logic, Symbolic and mathematical; Combinatorial analysis
700 _aGelca, Razvan
942 _2ddc
_cBK
999 _c6193
_d6193