@book{149140,
	author = {Phillips, Charles L. and Nagle, H. Troy.},
	title = {Digital control system analysis and design /},
	publisher = {Prentice Hall,},
	year = {c1995.},
	address = {Englewood Cliffs, N.J. :},
	edition = {3rd ed.},
	note = {Includes index.}
}