@INPROCEEDINGS{KraPenSchTayWid03,
  AUTHOR =       {E. Kranakis and P. Penna and K. Schlude and D. S. Taylor and P. Widmayer},
  TITLE =        {Improving Customer Proximity to Railway Stations},
  BOOKTITLE =    {Proc. of the 5th Italian Conference on Algorithms and Complexity (CIAC)},
  YEAR =         {2003},
  series =       {LNCS},
  volume =       {2653},
  pages =        {264-276}
}