author        = "Bodensteiner, J. and Shenar, T. and Mahy, L. and Fabry, M.
                       and Marchant, P. and Abdul-Masih, M. and Banyard, G. and
                       Bowman, D. M. and Dsilva, K. and Frost, A. J. and Hawcroft,
                       C. and Reggiani, M. and Sana, H.",
      title         = "{Is HR 6819 a triple system containing a black hole?. An
                       alternative explanation}",
      year          = "2020",