@book{10977,
	author = {Elaydi, Saber.},
	title = {An introduction to difference equations /},
	publisher = {Springer,},
	year = {2005.},
	series = {Undergraduate texts in mathematics.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0387230599/chopaconline-20}
}