Rolla C. Carpenter
American Society for Testing and Materials
Geoffrey Frohnsdorff
American Society for Testing Materials
Vivek B. Apte
M. Fickelson
Luis M. Elvira Martín
W. C. Popplewell
H.A Tyler
M. D. Strickler
British Standards Institution.
Kuo-Chang Fan
L. A. Waterbury
Arthur C. Willard
Harry Tucker
P. F. G. Banfill
Vasco Peixoto de de Freitas
Daniel Gross
Unknown Author