@Article{ 
  depgelgra04,
  author = { De Pascale, Luigi and Gelli, Maria Stella and Granieri, Luca },
  title = { Minimal measures, one-dimensional currents and the Monge-Kantorovich problem },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2006 },
  volume = { 27 },
  number = { 1 },
  pages = { 1-23 },
  URL = { http://cvgmt.sns.it/paper/1332/ },
  note = { cvgmt preprint}
}