1. H. G. Tattersall, “The ultrasonic pulse-echo techniques as applied to adhesion testing,” J. Phys. D., Appl. Phys. 6, 819 (1973).
2. R. B. Thompson, “A quasi-static model for the interaction of elastic waves with a planar array of voids,” unpublished technical report of Rockwell International Science Center (1973).
3. 1975 Ultrasonics Symp. Proc.;GA Alers,1975
4. 1976 Ultrasonics Symp. Proc.;GA Alers,1976
5. R. B. Thompson, B. J. Skillings, L. W. Zachary, L. W. Schmerr, and O. Buck, “Effects of crack closure on ultrasonic transmission,” Review of Progress in Quantitative Nondestructive Evaluation 2, D. O. Thompson and D. E. Chimenti, eds. (Plenum Press, New York, in press).