Kosuke Imai <imai@harvard.edu>, James Lo <jameslo989@gmail.com>, Jonathan Olmsted <jpolmsted@gmail.com>

Daniel Schuch [aut, cre] (<https://orcid.org/0000-0001-5977-4519>),
  Sergio Ibarra-Espinosa [aut] (<https://orcid.org/0000-0002-3162-1905>)

J.A. Torres-Matallana [aut, cre]
    K. Klepiszewski [aut, cre]
    U. Leopold [ctb]
    G. Schutz [ctb]
    G.B.M. Heuvelink [ctb]

Aliaksandr Hubin [aut],
  Waldir Leoncio [cre, aut],
  Geir Storvik [ctb],
  Florian Frommlet [ctb]

Carl Boettiger [aut, cre, cph]
    (<https://orcid.org/0000-0002-1642-628X>),
  Matthew B. Jones [aut, cph] (<https://orcid.org/0000-0003-0077-4738>),
  Bryce Mecum [aut, cph] (<https://orcid.org/0000-0002-0381-3766>)

Vytautas Dulskis [cre, aut],
  Leonidas Sakalauskas [aut]

Russell V. Lenth [aut, cre, cph],
  Balazs Banfai [ctb],
  Ben Bolker [ctb],
  Paul Buerkner [ctb],
  Iago Giné-Vázquez [ctb],
  Maxime Herve [ctb],
  Maarten Jung [ctb],
  Jonathon Love [ctb],
  Fernando Miguez [ctb],
  Julia Piaskowski [ctb],
  Hannes Riebl [ctb],
  Henrik Singmann [ctb]

Suren Rathnayake, Geoff McLachlan, David Peel, Jangsun Baek

Ziyang Lyu, Daniel Ahfock, Geoffrey J. McLachlan

Anjali Goswami, Tim Lucas, Prabu Sivasubramaniam, John Finarelli

Olaf Mersmann [aut, cre] (<https://orcid.org/0000-0002-7720-4939>)

Emil Hvitfeldt [aut, cre] (<https://orcid.org/0000-0002-0679-1945>),
  Hadley Wickham [ctb] (Data parsing code from hadley/emo),
  Romain François [ctb] (Data parsing code from hadley/emo)

Guangchuang Yu [aut, cre] (<https://orcid.org/0000-0002-6485-8781>),
  Claus Thorn Ekstrøm [ctb]

Cristian Bravo [aut, cre],
  Seppe vanden Broucke [ctb],
  Thomas Verbraken [aut]

Martijn Schuemie [aut, cre] (<https://orcid.org/0000-0002-0817-5361>),
  Marc Suchard [aut] (<https://orcid.org/0000-0001-9818-479X>)

Mai Zhou. (Art Owen for el.test(). Yifan Yang for some C code.)

William H. Barton [aut],
  Mai Zhou [cre, aut]

Mai Zhou [aut, cre, cph],
  Xue Ding [aut],
  Yumin Zhao [aut]

Kristian Hovde Liland [aut, cre]
    (<https://orcid.org/0000-0001-6468-9423>),
  Ulf Geir Indahl [ctb]