@Article{ 
  BalRoy16,
  author = { Ballarini, Roberto and Royer Carfagni, Gianni },
  title = { Closed-Path J -Integral Analysis of Bridged and Phase-Field Cracks },
  journal = { Journal of Applied Mechanics },
  year = { 2016 },
  doi = { 10.1115/1.4032986 },
  volume = { 83 },
  pages = { 06-1008-1/13 },
  URL = { http://cvgmt.sns.it/paper/3018/ },
  note = { cvgmt preprint}
}