@Article{ 
  CraMal12,
  author = { Crasta, Graziano and Malusa, Annalisa },
  title = { Existence and uniqueness of solutions for a boundary value problem arising from granular matter theory },
  journal = { J. Differential Equations },
  year = { 2015 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2008/ },
  note = { cvgmt preprint}
}