Alexandre Guinaudeau [aut, cre],
  Palantir Technologies [aut, cph]

Steven Andrew Culpepper [aut, cre, cph]
    (<https://orcid.org/0000-0003-4226-6176>)

Salvatore D. Tomarchio [aut, cre],
  Antonio Punzo [aut],
  Antonello Maruotti [aut]

Salil Koner [aut, cre, cph] (<https://orcid.org/0000-0003-1952-4210>),
  Sheng Luo [ctb, fnd]

Nicolás Hernández [aut, cre],
  Jairo Cugliari [aut, cre],
  Julien Jacques [aut]

Guangbao Guo [aut, cre, cph],
  Jiarui Li [ctb]

Alex M Chubaty [aut, cre] (<https://orcid.org/0000-0001-7146-8135>),
  Her Majesty the Queen in Right of Canada, as represented by the
    Minister of Natural Resources Canada [cph]

Cristina Tortora [aut, cre, cph], Noe Vidales [aut], Francesco Palumbo [aut], Tina Kalra [aut], and Paul D. McNicholas [fnd]

Federico Marotta [aut, cre] (<https://orcid.org/0000-0002-0174-3901>)

Guillem Rigaill [aut, cre],
  Toby Hocking [aut],
  Robert Maidstone [aut],
  Michel Koskas [ctb],
  Paul Fearnhead [aut]

Diethelm Wuertz [aut],
  Tobias Setz [aut],
  Yohan Chalabi [aut],
  William Chen [ctb],
  Stefan Theussl [aut, cre]

Rob Hyndman [aut, cre, cph],
  RStudio [cph]

Rob Hyndman [aut, cre, cph] (<https://orcid.org/0000-0002-2140-5352>),
  George Athanasopoulos [ctb],
  Mitchell O'Hara-Wild [ctb],
  Nuwani Palihawadana [ctb],
  Shanika Wickramasuriya [ctb],
  RStudio [cph]

Patricia Roman-Roman, Juan J. Serrano-Perez and Francisco Torres-Ruiz.

Iris Foxfoot [aut, cre],
  U.S. Army Engineer Research and Development Center [cph, fnd]

Andrew Gard [aut, cre] (<https://orcid.org/0000-0003-4434-0755>),
  Alexia Myers [aut],
  Irene Luwabelwa [aut]

Cole Brokamp [aut, cre, cph] (<https://orcid.org/0000-0002-0289-3151>)

Martin Maechler [aut, cre] (<https://orcid.org/0000-0002-8685-9910>),
  Chris Fraley [ctb, cph] (S original; Fortran code),
  Friedrich Leisch [ctb] (R port,
    <https://orcid.org/0000-0001-7278-1983>),
  Valderio Reisen [ctb] (fdGPH() & fdSperio()),
  Artur Lemonte [ctb] (fdGPH() & fdSperio()),
  Rob Hyndman [ctb] (residuals() & fitted(),
    <https://orcid.org/0000-0002-2140-5352>)