@incollection{Neumann2007, author = {Marika Neumann}, title = {Fare Planning for Public Transport}, booktitle = {Operations Research Proceedings 2006}, editor = {Karl-Heinz Waldmann and Ulrike Stocker}, pages = {61 -- 66}, url = {{http://opus.kobv.de/zib/volltexte/2009/1160/}}, year = {2007}, }