@article{Hayakawa:6791,
      author        = "Hayakawa, Hisashi and Bechet, Sabrina and Clette,
                       Frédéric and Hudson, Hugh S. and Maehara, Hiroyuki and
                       Namekata, Kosuke and Notsu, Yuta",
      title         = "{Magnitude Estimates for the Carrington Flare in 1859
                       September: As Seen from the Original Records }",
      year          = "2023",
}