@book{16196,
	author = {Ibragimov, I. A. and Has'minskii, R. Z.},
	title = {Statistical estimation; asymptotic theory},
	publisher = {Springer-Verlag,},
	year = {1981},
	series = {Applications of Mathematics },
	address = {New York:},
	note = {"Translated from the Russian by Samuel Kotz"}
}