@Article{ 
  daldesmor04,
  author = { Dal Maso, Gianni and DeSimone, Antonio and Mora, Maria Giovanna },
  title = { Quasistatic evolution problems for linearly elastic - perfectly plastic materials },
  journal = { Arch. Ration. Mech. Anal. },
  year = { 2006 },
  volume = { 180 },
  pages = { 237-291 },
  URL = { http://cvgmt.sns.it/paper/1467/ },
  note = { cvgmt preprint}
}