1. F. A. Dahlen:Geophys. Journ. Roy. Astr. Soc.,28, 357 (1972);31, 469 (1973).Bull. Seismol. Soc. Amer.,62, 1173, 1183 (1972);K. Walton:Geophys. Journ. Roy. Astr. Soc.,31, 373 (1973);36, 651 (1974).
2. A. E. Green andR. S. Rivlin:Zeits. Angew. Math. Phys.,15, 290 (1964).
3. The first paper on this subject is that ofA. E. Green, R. S. Rivlin andR. T. Shield:Proc. Roy. Soc., A211, 128 (1952).
4. See,e.g.,A. C. Eringen:Mechanics of Continua (New York, N. Y., 1967).
5. C. Truesdell andW. Noll:The Nonlinear Field Theories of Mechanics, Handbuch der Physik, Vol. VIII/3 (Berlin, 1965);A. E. Green andJ. E. Adkins:Large Elastic Deformations and Nonlinear Continuum Mechanics (Oxford, 1960);R. S. Rivlin: inSymposium on Dynamics of Fluids and Plasmas edited byS. I. Pai (New York, N. Y., 1966), p. 83.