1. A. E. H. Love,The Mathematical Theory of Elasticity (Dover Publications, New York, 1944), p. 142.
2. J. G. Chakravorty, andD. Chatterjee,On the effect of non-homogeneity, Pure and Applied Geophys.109, (1973), 1672.
3. P. P. Chattarji andS. C. Bose,Note on the deformation and stresses in an earth model with a rigid core, Ind. Jour. Theor. Phys.XI,1, 21 (1963).
4. S. K. Pan,Note on the deformation and stresses in different earth models with rigid core, Ind. Jour. Mech. and Math.1, 2 (1963), 49.
5. B. A. Bolt,Earth models with continuous density distribution, MNRAS, Geophys. Supp.7, (1957), 360.