@Article{ 
  CatMazMon13,
  author = { Catino, Giovanni and Mazzieri, Lorenzo and Mongodi, Samuele },
  title = { Rigidity of gradient Einstein shrinkers },
  journal = { Comm. Cont. Math. },
  year = { 2015 },
  volume = { 17 },
  number = { 6 },
  pages = { 1550046 },
  URL = { http://cvgmt.sns.it/paper/2197/ },
  note = { cvgmt preprint}
}