@Misc{ 
  BuNaNiTr21,
  author = { Bucur, Dorin and Nahon, Mickael and Nitsch, Carlo and Trombetti, Cristina },
  title = { Shape optimization of a thermal insulation problem },
  journal = {  },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5376/ },
  note = { cvgmt preprint}
}