1. Spencer, A. J. M.: Deformations of fibre-reinforced materials. Oxford: Clarendon Press 1972.
2. Musgrave, M. J. P.: Crystal acoustics. San Francisco: Holden-Day 1970.
3. Chadwick, P., Ting, T. C. T., Wilson, N. J.: Wave propagation in incompressible, transversely isotropic elastic media. Unpublished work.
4. Belward, J. A.: Elastic waves in a prestressed Mooney material. Bull. Austral. Math. Soc.7, 135?160 (1972).
5. Green, W. A.: Wave propagation in strongly anisotropic elastic materials. Arch. Mech.30, 297?307 (1978).