1. M. L. Williams,Bull. Seismol. Soc. Amer. 49 (1959) 199.
2. J. R. Rice,J. Appl. Mech. 55 (1988) 103.
3. G. P. Anderson, S. K. Bennett andK. L. Devries, ?Analysis and Testing of Adhesive Joints? (Academic, New York, 1977) p. 194.
4. W. D. Bascom, R. L. Jones andC. O. Timmons, in ?Adhesion Testing Science and Technology?, Vol. 9B, edited by L. H. Lee (Plenum, New York, 1975) p. 501.
5. H. C. Cao andA. G. Evans, to be published.