@misc{kaltenbrunnerBCN2008,
  author =     {Andreas Kaltenbrunner and Rodrigo Meza and Jens
                  Grivolla and Joan Codina and Rafael Banchs},
  title =     {Bicycle cycles and mobility patterns - Exploring and
                  characterizing data from a community bicycle
                  program},
  year =     2008,
  eprint =     {0810.4187v1},
  url =         {http://arxiv.org/abs/0810.4187},
  note =     {e-print arXiv:0810.4187}
}