Beni Aviʻad
Avigdor Zajdman
Unknown Author
Stephen M. Riddlebaugh
A.T Priddle
Robert C. Hendricks
American Society for Testing and Materials
T. L. Alleman
M. L. Joe Stangeland
Richard S. Stein
Ramesh Bhatia
J. Michael Price
Lisa W. Griffin
United States. General Accounting Office