@Article{ 
  BelButVel16,
  author = { Bellido, José Carlos and Buttazzo, Giuseppe and Velichkov, Bozhidar },
  title = { Worst-case shape optimization for the Dirichlet energy },
  journal = { Nonlinear Analysis },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2990/ },
  note = { cvgmt preprint}
}