XieL09'

@article{DBLP:journals/urban/XieL09,
  author    = {Feng Xie and
               David Levinson},
  title     = {Topological evolution of surface transportation networks},
  journal   = {Computers, Environment and Urban Systems},
  volume    = {33},
  number    = {3},
  year      = {2009},
  pages     = {211-223},
  ee        = {http://dx.doi.org/10.1016/j.compenvurbsys.2008.09.009},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}