@Article{ 
  ColDeRMar17,
  author = { Colombo, Maria and De Rosa, Antonio and Marchese, Andrea },
  title = { Improved stability of optimal traffic paths },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3293/ },
  note = { cvgmt preprint}
}