@book{16272,
	author = {Yemelichev, V. A. and Others and Kovalev, M. M. ; jt. auth.},
	title = {Polytopes, graphs and optimization},
	publisher = {Cambridge University Press},
	year = {1984},
	address = {Cambridge},
	note = {"Tr. from the Russian by G. H. Lawden".}
}