@book{9333,
	author = {Keeney, Ralph L. and Raiffa, Howard and Raiffa, Howard ; jt. auth.},
	title = {Decisions with multiple objectives; preferences and value trade-offs},
	publisher = {John Wiley},
	year = {1976},
	series = {Wiley series in Probability and Mathematical Statistics},
	address = {New York}
}