@Article{ 
  dal06,
  author = { Dal Maso, Gianni },
  title = { Variational problems in fracture mechanics },
  journal = { New Developments in the Calculus of Variations (Benevento, March 2005) },
  year = { 2006 },
  pages = { 57-67 },
  URL = { http://cvgmt.sns.it/paper/578/ },
  note = { cvgmt preprint}
}