%% -*-BibTeX-*- @TechReport{Borndoerfer2008, author = "Ralf Bornd{\"o}rfer", title = "Discrete Optimization in Public Transportation", type = "{ZIB} Report", number = "08-56", institution = "ZIB", address = "Takustr. 7, 14195 Berlin", year = "2008", URL = "http://opus.kobv.de/zib/volltexte/2009/1168/", language = "English", }