Operations Research Proceedings 2006 Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Jointly Organized with the Austrian Society of Operations Research (ÖGOR) and the Swiss Society of Operations Research (SVOR) Karlsruhe, September 6–8, 2006 - Waldmann, Karl-Heinz; Stocker, Ulrike M. (Springer Berlin Heidelberg, 2007)