@Article{ 
  ansgar06,
  author = { Ansini, Nadia and Garroni, Adriana },
  title = { $\Gamma$ -convergence of functionals on divergence-free fields },
  journal = { ESAIM: Control, Optimisation and Calculus of Variations },
  year = { 2007 },
  volume = { 13 },
  number = { 4 },
  pages = { 809-828 },
  URL = { http://cvgmt.sns.it/paper/466/ },
  note = { cvgmt preprint}
}