@Misc{ 
  FaMiPeSqZh15,
  author = { Faria, Luiz and Miyagaki, Olimpio and Pereira, Fabio and Squassina, Marco and Zhang, Chengxiang },
  title = { The Brezis-Nirenberg problem for nonlocal systems },
  journal = { Advances in Nonlinear Analysis },
  year = { 2015 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2775/ },
  note = { cvgmt preprint}
}