@book{164395,
	author = {�Astr�om, Karl J. and Wittenmark, Bj�orn.},
	title = {Computer-controlled systems :},
	publisher = {Prentice Hall,},
	year = {1997.},
	address = {Upper Saddle River, NJ :},
	edition = {3rd ed.},
	note = {Includes index.}
}