Eric Berne
Eliyahu M. Goldratt
Christopher Weaver
A. Goodman
George A. Brook
R. Navarro
Michael Norton-Griffiths
Ralph C. Grove
A. L. Burlingame
United States. NASA Data Systems/Trend Analysis Division.
Lawrence K. Lustig
Olavi Heikkinen
Walter Koch
David Lloyd Stevenson
Jean Pierre Thouez
D. Unwin
C. Otto
Harold Carleton MacDonald
Neil Wrigley
F. P. Agterberg