@book{44438,
	author = {Koenig, David M.},
	title = {Practical control engineering :},
	publisher = {McGraw-Hill,},
	year = {c2009},
	address = {New York :},
	note = {Includes index},
	url = {http://www.loc.gov/catdir/toc/ecip0826/2008037488.html}
}