@Article{ 
  daldes08,
  author = { Dal Maso, Gianni and DeSimone, Antonio },
  title = { Quasistatic evolution for Cam-Clay plasticity: examples of spatially homogeneous solutions },
  journal = { Math. Models Methods Appl. Sci. },
  year = { 2009 },
  volume = { 19 },
  pages = { 1-69 },
  URL = { http://cvgmt.sns.it/paper/80/ },
  note = { cvgmt preprint}
}