@book{6922,
	author = {Papoulis, Athanasios, and Pillai, S. Unnikrishna,},
	title = {Probability, random variables, and stochastic processes /},
	publisher = {McGraw-Hill,},
	year = {c2002.},
	address = {Boston :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1011/2001044139-t.html}
}