@book{13447,
	author = {Cheng, David K.},
	title = {Analysis of linear systems /},
	publisher = {Addison Wesley Publishing Co,},
	year = {1959.},
	address = {[S.l.] :},
	edition = {1961 printing ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0201010208/chopaconline-20}
}