@book{60678,
	author = {Janssen, J M L (Ed.) and Pau, L F (Ed.)},
	title = {Models and decision making in national economies},
	publisher = {North-Holland},
	year = {1979},
	address = {Amsterdam},
	note = {Sponsored by International Federation of Automatic Control (IFAC), International Institute For Applied Systems Analysis (IIASA)and International Federation of Operational Research Societies (IFORS)}
}