@Misc{ 
  ambfig09a,
  author = { Ambrosio, Luigi and Figalli, Alessio },
  title = { Lecture notes on variational models for incompressible Euler equations },
  journal = {  },
  year = { 2009 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/507/ },
  note = { cvgmt preprint}
}