@book{16217,
	author = {Stoer, Josef and Witzgall, Christoph and Witzgall, Christoph ; jt. auth.},
	title = {Convexity and optimization in finite dimensions},
	publisher = {Springer-Verlag},
	year = {1970},
	series = {Die Grundlehren der Mathematischen Wissenschaften in Einzeldarstellungen},
	address = {Berlin}
}