Created by Michael Leonhartsberger
Contributed by Florian Hardwig
Contributed by Nick Sherman
Contributed by Matthijs Sluiter
Contributed by Soimadou Ibrahim-Aliamane
Contributed by Stephen Coles
Contributed by Balder D. Dysthe
Contributed by Patrice Barnabé
Contributed by Manuel Wesely
Contributed by Love Lagerkvist
Contributed by Rob Hudson
Contributed by Herb Lubalin Study Center