@Misc{ 
  PalPicTem23,
  author = { Palatucci, Giampiero and Piccinini, Mirco and Temperini, Letizia },
  title = { Struwe's Global Compactness and energy approximation of the critical  Sobolev embedding in the Heisenberg group },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6173/ },
  note = { cvgmt preprint}
}