@Misc{ 
  FonLeo14,
  author = { Fonseca, Irene and Leoni, Giovanni },
  title = { Calculus of Variations },
  journal = {  },
  year = { 2014 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2438/ },
  note = { cvgmt preprint}
}