@book{513790,
	author = {Bergstorm Reinhold and  Wold Herman},
	title = {Fix point estimation in theory and practice},
	publisher = {Vandenhoeck and Ruprecht        },
	year = {1983},
	series = {Applied Statistics and Econometrics. 23},
	address = {Bergstrom},
	note = {Bibliography: P 124-128}
}