@book{455,
	author = {Hill, R. Carter.},
	title = {Messy data},
	publisher = {Emerald,},
	year = {1999.},
	series = {Advances in econometrics,},
	address = {Bingley, U.K. :},
	url = {http://www.emeraldinsight.com/0731-9053/13}
}