Operations Research Proceedings 2012 Selected Papers of the International Annual Conference of the German Operations Research Society (GOR), Leibniz University of Hannover, Germany, September 5-7, 2012 - Helber, Stefan; Breitner, Michael; Rösch, Daniel; Schön, Cornelia; Graf von der Schulenburg, Johann-Matthias; Sibbertsen, Philipp; Steinbach, Marc; Weber, Stefan; Wolter, Anja (Springer International Publishing : Imprint: Springer, 2014)