@book{7957,
	author = {Rouche, Nicolas. and Habets, P.,},
	title = {Stability theory by Liapunov's direct method /},
	publisher = {Springer-Verlag,},
	year = {c1977.},
	series = {Applied mathematical sciences ;},
	address = {New York :},
	note = {Includes indexes.}
}