1. W. A. Green, in Elastic Waves and Ultrasonic Nondestructive Evaluation edited by S. K. Datta, J. D. Achenbach and Y. S. Rajapakse (North Holland, Amsterdam, 1990) p.417.
2. E. R. Baylis and W. A. Green, in Proceedings of the Third International Conference on Recent Advances in Structural Dynamics edited by M. Petyt, H. F. Wolfe and C. Mei (Airforce Wright Aeronautical Laboratories, TR-88-3034, 1988), Vol. 1, p.171.
3. W. A. Green and E. R. Baylis, ibid, p.185
4. W. A. Green and E. R. Baylis in Wave Propagation in Structural Composites edited by A. K. Mal and T.C.T. Ting, (ASME/AMD, New York, 1988) Vol. 90, p.53.
5. W. A. Green in Proceedings of ARO Workshop on Recent Advances in the Mathematical Theory of Anisotropic Elasticity to be published.