@Article{ 
  pal10,
  author = { Palatucci, Giampiero },
  title = { Subcritical approximation of the Sobolev quotient and a related concentration result },
  journal = { Rend. Sem. Mat. Univ. Padova },
  year = { 2011 },
  volume = { 125 },
  pages = { 1-14 },
  URL = { http://cvgmt.sns.it/paper/1154/ },
  note = { cvgmt preprint}
}