@Article{ 
  CatMasDam22a,
  author = { Catino, Giovanni and Dameno, Davide and Mastrolia, Paolo },
  title = { Rigidity results for Riemannian twistor spaces under vanishing curvature conditions },
  journal = { Ann. Glob. Anal. Geom. },
  year = { 2023 },
  volume = { 63 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5608/ },
  note = { cvgmt preprint}
}