@book{172065,
	author = {Papoulis, Athanasios},
	title = {Circuits and Systems },
	publisher = {Holt, Rinehart and Winston, },
	year = {1980.},
	series = {Series in electrical and computer engineering},
	address = {New York :},
	edition = {1a ed.},
	note = {Incluye índice.}
}