@book{29960,
	author = {Fortmann, Thomas E. and Hitz, Konrad L.,},
	title = {An introduction to linear control systems /},
	publisher = {M. Dekker,},
	year = {c1977.},
	series = {Control and systems theory ; v. 5},
	address = {New York :},
	note = {Includes index.}
}