@Article{ 
  gra09,
  author = { Granieri, Luca },
  title = { A finite dimensional linear programming approximation of Mather variational problem },
  journal = { ESAIM COCV },
  year = { 2009 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/94/ },
  note = { cvgmt preprint}
}