Cyril Stapley Chettoe
V. K. Raina
Portland Cement Association, Chicago.
Karl Heinz Holst
G. P. Mallett
Marco Rosignoli
National Research Council (US)
Alireza Ghorbanpoor
Unknown Author
Martin J. Gutzwiller
Christian Menn
Denis Mitchell
British Constructional Steelwork Association.
Hubert K. Hilsdorf
William T. Lockman
Prestressed Concrete Segmental Bridge Construction Seminar (1978 Little Rock, Ark.)
American Association of State Highway and Transportation Officials
Jörg Schlaich
Santiago Calatrava
Ravindra K. Dhir