@techreport{FuegenschuhGeisslerGollmeretal.2013, author = {Armin F{\"u}genschuh and Bj{\"o}rn Geißler and Ralf Gollmer and Christine Hayn and Rene Henrion and Benjamin Hiller and Jesco Humpola and Thorsten Koch and Thomas Lehmann and Alexander Martin and Radoslava Mirkov and Antonio Morsi and Werner R{\"o}misch and Jessica R{\"o}vekamp and Lars Schewe and Martin Schmidt and R{\"u}diger Schultz and Robert Schwarz and Jonas Schweiger and Claudia Stangl and Marc Steinbach and Bernhard Willert}, title = {Mathematical Optimization for Challenging Network Planning Problems in Unbundled Liberalized Gas Markets}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {13-13}, language = {eng}, year = {2013} }