@book{16505,
	author = {Pervozvanskii, A. A. and Gaitsgori, V. G.},
	title = {Theory of sub optimal decisions; decomposition and aggregation; sponsored by IIASA},
	publisher = {Academic Press,},
	year = {1988},
	series = {Mathematics and its applications) (Soviet series},
	address = {Dordrecht:}
}