@article{Bischetti:99106,
      author        = "Bischetti, M. and Feruglio, C. and Piconcelli, E. and
                       Duras, F. and Perez-Torres, M. and Herrero, R. and Venturi,
                       G. and Carniani, S. and Bruni, G. and Gavignaud, I. and
                       Testa, V. and Bongiorno, A. and Brusa, M. and Circosta, C.
                       and Cresci, G. and D'Odorico, V. and Maiolino, R. and
                       Marconi, A. and Mingozzi, M. and Pappalardo, C. and Perna,
                       M. and Traianou, E. and Travascio, A. and Vietri, G. and
                       Zappacosta, L. and Fiore, F.",
      title         = "{The WISSH quasars project: IX. Cold gas content and
                       environment of luminous QSOs at z ~2.4-4.7}",
      year          = "2021",
}