@Article{ 
  PinNovFar13,
  author = { Farina, Alberto and Novaga, Matteo and Pinamonti, Andrea },
  title = { Symmetry results for nonlinear elliptic operators with unbounded drift },
  journal = { NoDEA Nonlinear Differential Equations Appl. },
  year = { 2014 },
  volume = { 21 },
  number = { 6 },
  pages = { 869-883 },
  URL = { http://cvgmt.sns.it/paper/2163/ },
  note = { cvgmt preprint}
}