@Article{ 
  dacmarpaoa,
  author = { Dacorogna, Bernard and Marcellini, Paolo and Paolini, Emanuele },
  title = { On the $n$-dimensional Dirichlet problem for isometric maps },
  journal = { J. Funct. Anal. },
  year = { 2008 },
  doi = { 10.1016/j.jfa.2008.10.010 },
  volume = { 255 },
  pages = { 3274-3280 },
  URL = { http://cvgmt.sns.it/paper/592/ },
  note = { cvgmt preprint}
}