@Article{ 
  giamuc05,
  author = { Giaquinta, Mariano and Mucci, Domenico },
  title = { Density results relative to the Dirichlet energy of mappings into a manifold  },
  journal = { Comm. Pure Appl. Math. },
  year = { 2006 },
  volume = { 59 },
  number = { 12 },
  pages = { 1791-1810 },
  URL = { http://cvgmt.sns.it/paper/260/ },
  note = { cvgmt preprint}
}