@book{2817,
	author = {Symposium on models and simulation of economic and administrative systems, Gothenburg, 1968 and Stockhaus, Hakan},
	title = {Models and simulation},
	publisher = {Akademi-Forlaget,},
	year = { },
	address = {Goteburg:},
	note = {(Gothenburg school of Economics and Business Administration publications)}
}