@Misc{ 
  cancarsin08,
  author = { Cannarsa, Piermarco and Cardaliaguet, Pierre and Sinestrari, Carlo },
  title = { On a differential model for growing sandpiles with non-regular sources },
  journal = {  },
  year = { 2008 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/360/ },
  note = { cvgmt preprint}
}