Original Authors and Contributors:

Joe Armstrong
Robert Virding
Mike Williams
Claes Wikstr�m
Tony Rogvall
Magnus Fr�berg
Martin Bj�rklund
Bj�rn Gustavsson
Patrik Nyblom
Arndt Jonasson
Kenneth Lundin
Peter H�gfeldt
Torbj�rn T�rnkvist
Sebastian Strollo
Carl Wilhelm Welin
Lennart �hman
Hans Bolinder
Raimo Niskanen
Rickard Green
Gunilla Arendt
Dan Gudmundsson
Peter Andersson
Ingela Anderton
Jakob Cederlund

and probably others...

Open source contributors:
Richard Carlsson and Sven-Olof Nystr�m: gb_trees and gb_sets
Richard Carlsson (several modules)