1. A. E. H. LOVE, “A Treatise on the Mathematical Theory of Elasticity”, 4th Edn (Dover, New York, 1944).
2. S. SOKOLNIKOFF, “Mathematical Theory of Elasticity” (McGraw-Hill, New York, 1956).
3. J. D. FERRY, “Viscoelastic Properties of Polymers” (Wiley, New York, 1961).
4. B. E. READ and G. D. DEAN, “The Determination of Dynamic Properties of Polymers and Composites” (Hilger, Bristol, 1978).
5. J. R. DRABBLE, in “Elastic Constants under Pressure” edited by H. L. D. PUGH (Elsevier, Amsterdam, 1970) Ch. 4.