@Article{ 
  CavMagMon16,
  author = { Cavalletti, Fabio and Maggi, Francesco and Mondino, Andrea },
  title = { Rigidity for critical points in the Levy-Gromov inequality },
  journal = { Math. Zeit },
  year = { 2016 },
  doi = { 10.1007/s00209-017-1993-x },
  pages = { 5 },
  URL = { http://cvgmt.sns.it/paper/3266/ },
  note = { cvgmt preprint}
}