R.J. Brook, UK
E.D. Hondros, The Netherlands
W.D. Kingery†, USA
R. Pampuch, Poland
G. Petzow, Germany
V.J. Shevchenko, Russia
R.M. Spriggs†, USA
Pietro Vincenzini, Italy, Founding Member
Dong Sheng Yan, China
H. Yanagida†, Japan