@Misc{ 
  DipPinVal18,
  author = { Dipierro, Serena and Pinamonti, Andrea and Valdinoci, Enrico },
  title = { Rigidity results in Diffusion Markov Triples },
  journal = { J. Funct. Anal. },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3725/ },
  note = { cvgmt preprint}
}