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020			_a81-8128-323-6
040			_c.
082			_a510.76 AND
100			_aAndreescu, Titu, Gelca, Razvan _961999
245			_aMathematical olympiad challenges
260			_aNEW DLEHI _bSPRINGER _c2004
300			_aXV,242 P
650			_aMATHEMATICS - PROBLEMS EXERCIES, ETC _962000
942			_cBK _2ddc
999			_c571253 _d571253