@proceedings{publication-7420,
	address={Berlin, Heidelberg},
	doi={10.1007/978-3-642-29210-1},
	editor={L{\"u}thi, Hans-Jakob and Schmedders, Karl and Klatte, Diethard},
	isbn={978-3-642-29209-5 (P) 978-3-642-29210-1 (E)},
	publisher={Springer Berlin Heidelberg},
	series={Operations Research Proceedings},
	title={Operations Research Proceedings 2011},
	year=2012,
}