@book{213178,
	author = {Haykin, Simon S.,},
	title = {Communication systems E-Book},
	publisher = {Wiley,},
	year = {c2001.},
	address = {New York :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/description/wiley032/99042977.html}
}