@Article{ 
  Cas10,
  author = { Castorina, Daniele },
  title = { Uniqueness of positive radial solutions for quasilinear elliptic equations in an annulus },
  journal = { Nonlinear Analysis: Theory, Methods & Applications },
  year = { 2010 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3012/ },
  note = { cvgmt preprint}
}