@Article{ 
  coldelmin,
  author = { Colding, Tobias and De Lellis, Camillo and Minicozzi, William P. II },
  title = { Three circles theorems for Schrödinger operators on cylindrical ends and geometric applications  },
  journal = { Comm. Pure App. Math. },
  year = { 2008 },
  volume = { 61 },
  pages = { 1540-1602 },
  URL = { http://cvgmt.sns.it/paper/593/ },
  note = { cvgmt preprint}
}