Nondestructive evaluation of materials and composites : 3-5 December 1996, Scottsdale, Arizona / Steve Doctor, et al., Chairs/Editors ; Sponsored by SPIE--the International Society for Optical Engineering ; Cosponsored by Federal Highway Administration [and others] ; Cooperating organizations U.S. Department of Energy [and others] ; Published by SPIE--The International Society for Optical Engineering