@inproceedings{LiebchenSwarat2008, author = {Christian Liebchen and Elmar Swarat}, title = {The Second Chvatal Closure Can Yield Better Railway Timetables}, booktitle = {ATMOS 2008 - 8th Workshop on Algorithmic Approaches for Transportation Modeling, Optimization, and Systems}, editor = {Matteo Fischetti and Peter Widmayer}, doi = {10.4230/OASIcs.ATMOS.2008.1580}, url = {http://drops.dagstuhl.de/opus/volltexte/2008/1580}, year = {2008}, }