Michael Czekanski [aut, cre],
  Alex Lyford [aut]

Daniel Vartanian [aut, cre, ccp, cph]
    (<https://orcid.org/0000-0001-7782-759X>),
  Ana Amelia Benedito-Silva [sad]
    (<https://orcid.org/0000-0003-4976-2623>),
  Mario Pedrazzoli [sad] (<https://orcid.org/0000-0002-5257-591X>),
  Jonathan Keane [rev] (<https://orcid.org/0000-0001-7087-9776>),
  Mario Andre Leocadio-Miguel [rev]
    (<https://orcid.org/0000-0002-7248-3529>),
  University of Sao Paulo (USP) [fnd]

Axel Gandy [aut, cre],
  James Scott [aut]

Kevin Wang [aut, cre],
  Chen Lin [aut],
  Samuel Mueller [aut]

Daniel Schneider [aut, cre],
  Mikko Myrskyla [ctb],
  Alyson van Raalte [ctb]

Colin Rundel [aut, cre],
  Martin Mitáš [cph] (md4c author: md4c.c, md4c.h, specs/md4c/),
  RStudio, PBC [cph] (httpuv_url_tools.cpp),
  John MacFarlane [cph] (specs/gfm/spec.txt, specs/md4c/spec.txt)

S original by Trevor Hastie & Robert Tibshirani. Original R port by Friedrich Leisch, Kurt Hornik and Brian D. Ripley. Balasubramanian Narasimhan has contributed to the upgrading of the code.

Wujuan Zhong, Li Dong, Quefeng Li, Xiaojing Zheng

Sergey Kucheryavskiy [aut, cre]
    (<https://orcid.org/0000-0002-3145-7244>)

Marc Ratkovic [aut, cre],
  Dustin Tingley [ctb],
  Nithin Kavi [aut]

Alberto Fernandez [aut, cre] (<https://orcid.org/0000-0002-1241-1646>),
  Sergio Gomez [aut] (<https://orcid.org/0000-0003-1820-0062>)

Radosław Piliszek [aut, cre],
  Krzysztof Mnich [aut],
  Paweł Tabaszewski [aut],
  Szymon Migacz [aut],
  Andrzej Sułecki [aut],
  Witold Remigiusz Rudnicki [aut]

Gerhard Burger [aut, cre] (<https://orcid.org/0000-0003-1062-5576>)

Benjamin Christoffersen [cre, aut]
    (<https://orcid.org/0000-0002-7182-1346>),
  Alan Genz [cph],
  Frank Bretz [cph],
  Torsten Hothorn [cph],
  R-core [cph],
  Ross Ihaka [cph]

Alexander Robitzsch [aut, cre], Oliver Luedtke [aut]

Daniel B. McArtor (dmcartor@gmail.com) [aut, cre]

Xiao Guo [aut, cre],
  Guang Cheng [aut],
  Zixin Lin [trl]

Marta Karas [aut, cre],
  Damian Brzyski [ctb],
  Jaroslaw Harezlak [ctb]