%% -*-BibTeX-*- @InProceedings{BorndoerferNeumannPfetsch2006, author = "Ralf Bornd{\"o}rfer and Marika Neumann and {Marc E.} Pfetsch", editor = "{H.-D.} Haasis", booktitle = "Operations Research Proceedings 2005", title = "Optimal Fares for Public Transport", publisher = "Springer Verlag", pages = "29--36", year = "2006", note = "{ZIB} Report 05-35", URL = "http://opus.kobv.de/zib/volltexte/2005/869/", language = "English", }