@book{18224,
	author = {Yaglom, A. M. and Yaglom, I. M. and Yaglom, I. M.},
	title = {Challenging mathematical problems with elementary solutions ; problems from various brances of mathematics},
	publisher = {Dover,},
	year = {1987},
	series = {Dover books on Mathematics},
	address = {New york:},
	note = {"Purchased under NBHM grant for the year 1998-99"}
}