000			00401nmm a2200133Ia 4500
008			230125s9999||||xx |||||||||||||||||und||
020			_a9780817646110
100			_aTitu Andreescu, Razvan Gelca
245		0	_aMathematical Olympiad Challenges
250			_a2nd ed. 2009
260			_bBirkhäuser Boston _c2009
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-0-8176-4611-0
999			_c4033 _d4033