@book{35430,
	author = {Davidson, Russell. and MacKinnon, James G.},
	title = {Estimation and inference in econometrics /},
	publisher = {Oxford University Press,},
	year = {1993.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy0604/92012048-d.html}
}