@Article{ 
  cramal,
  author = { Crasta, Graziano and Malusa, Annalisa },
  title = { A nonhomogeneous boundary value problem in mass transfer theory },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2012 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/268/ },
  note = { cvgmt preprint}
}