@book{626386,
	author = {Conover W J},
	title = {Practical nonparametric statistics Ed. 2},
	publisher = {John Wiley        },
	year = {1980},
	series = {Wiley Series in Probability and Mathematical Statistics},
	address = {New York},
	edition = {Ed. 2},
	note = {Bibliography: P 394-426}
}