1. S. I. Rokhlin, Interface properties characterization by interface and Lamb waves, inReview of Progress in Quantitative NDE, Vol. 5, D. O. Thompson and D. E. Chimenti, eds. (Plenum, New York, 1986), pp. 1301?1308.
2. I. A. Viktorov,Rayleigh and Lamb Waves (Plenum Press, New York, 1970).
3. A. Pilarski, Ultrasonic evaluation of the adhesion degree in layered joints,Mater. Eval. 43:765?770 (1985).
4. M. J. S. Lowe and P. Cawley, Comparison of the modal properties of a stiff layer embedded in a solid medium with the minima of the plane wave reflection coefficient,J. Acoust. Soc. Am. (submitted).
5. R. Stoneley, Elastic waves at the surface of separation of two solids,Proc. Roy. Soc. 106:416?428 (1924).