@Article{ 
  AlmDalToa14,
  author = { Almi, Stefano and Dal Maso, Gianni and Toader, Rodica },
  title = { Quasi-static crack growth in hydraulic fracture },
  journal = { Nonlinear Analysis },
  year = { 2014 },
  volume = { 109 },
  pages = { 301-318 },
  URL = { http://cvgmt.sns.it/paper/2454/ },
  note = { cvgmt preprint}
}