@book{8971,
	author = {Diggle, Peter. and Liang, Kung-Yee.},
	title = {Analysis of longitudinal data /},
	publisher = {Clarendon Press ;},
	year = {1994.},
	series = {Oxford statistical science series ;},
	address = {Oxford :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0640/94001859-d.html}
}