00331nam a2200121Ia 4500020001500000082001800015100003900033245003800072260003600110300002700146500000500173700003100178  a0817643052  a512bAn558.MO  aAndreescu, Titu and Enescu, Bogdan  aMathematical olympiad treasuresb  aBostonbBirkhauser Verlagc2004  avi, 234p. Bibl. Index.  a  aEnescu, Bogdan ; jt. auth.