@Article{ 
  daltoa01,
  author = { Dal Maso, Gianni and Toader, Rodica },
  title = { A model for the quasi-static growth of brittle fractures: existence and approximation results },
  journal = { Arch. Rational Mech. Anal. },
  year = { 2002 },
  volume = { 162 },
  pages = { 101-135 },
  URL = { http://cvgmt.sns.it/paper/1111/ },
  note = { cvgmt preprint}
}