@Article{ 
  Xia8,
  author = { Xia, Qinglan },
  title = { Numerical simulation of optimal transport paths },
  journal = { 2010 Second International Conference on Computer Modeling and Simulation },
  year = { 2010 },
  pages = { 521-525 },
  URL = { http://cvgmt.sns.it/paper/5249/ },
  note = { cvgmt preprint}
}