@book{9223,
	author = {Tarter, Michael E. and Lock, Michael D.},
	title = {Model-free curve estimation /},
	publisher = {Chapman & Hall,},
	year = {c1993.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy0744/93038411-d.html}
}