M. A. Mansur
Unknown Author
G. Gurfinkel
C. B. Wilby
Dennis K. Kikuchi
Waterways Experiment Station (U.S.). Concrete Laboratory.
Texas Transportation Institute.
L. A. Clark
Jun Yamazaki
Instituut TNO voor Bouwmaterialen en Bouwconstructies.
René Walther
Jupp Grote
Wolfgang Zerna
James Keith Green
American Association Of State Highway and Transportation Offices
Martin Thomsing
John Zhongguo
California. Division of Highways.
Stöckl, Siegfried.
Armand Fürst