Christian Grebe [cre, aut] (ORCID:
    <https://orcid.org/0000-0002-1944-7422>),
  Mirko Schürmann [aut] (ORCID: <https://orcid.org/0000-0003-2646-085X>),
  Joerg-Henrik Heine [ctb],
  Patrick Mair [ctb],
  Thomas Rusch [ctb],
  Reinhold Hatzinger [ctb],
  Marco J. Maier [ctb],
  Rudolf Debelak [ctb]

Rudolf Jagdhuber [aut, cre],
  Jorge Nocedal [cph] (lbfgs c library),
  Naoaki Okazaki [cph] (lbfgs c library)

Os Keyes [aut, cre],
  Penelope Hopkins [ctb],
  Robyn Temple-Wood [ctb],
  Mayank Lahiri [cph]

Dewey Dunnington [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-9415-4582>),
  Phil Harvey [aut]

Amjad Ali [aut, cre, cph],
  Muhammad Hamraz [aut],
  Saeed Aldahmani [aut],
  Zardad Khan [aut]

Alcinei Mistico Azevedo [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-5196-0851>)

Joachim Gassen [aut, cre] (ORCID:
    <https://orcid.org/0000-0003-4364-2911>)

Saikath Das [aut, cre],
  Bishal Gurung [aut],
  Achal Lama [aut],
  KN Singh [aut]

Bishal Gurung [aut, cre],
  Saikat Das [aut],
  Achal Lama [aut],
  Kn Singh [aut]

Nicolas Moiroux [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-6755-6167>)

Felipe Campelo [aut, cre],
  Moises Botelho [aut]

Eric Batista Ferreira, Portya Piscitelli Cavalcanti, Denismar Alves Nogueira

Fabian Otto-Sobotka [cre],
  Elmar Spiegel [aut],
  Sabine Schnabel [aut],
  Linda Schulze Waltrup [aut],
  Paul Eilers [ctb],
  Thomas Kneib [ths],
  Goeran Kauermann [ctb]

Lluís Revilla Sancho [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-9747-2570>),
  Juanjo Lozano [ths] (ORCID: <https://orcid.org/0000-0001-7613-3908>),
  Azucena Salas Martinez [ths] (ORCID:
    <https://orcid.org/0000-0003-4572-2907>)

Joe Chelladurai [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-8477-3753>)

Kosuke Imai [aut, cre],
  Zhichao Jiang [aut]

Kerem Tuncer [cre],
  Donald Green Green [aut]

Jed Stephens [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-0131-703X>)

Philip Cooney [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-9649-0195>),
  Arthur White [ths] (ORCID: <https://orcid.org/0000-0002-7268-5163>)