1. Yu. É. Senitskii, ‘‘Inhomogeneous anisotropic cylinder and sphere under an arbitrary radially symmetric dynamic load,’’ Sov. Appl. Mech. 14, 451–456 (1978).
https://doi.org/10.1007/BF00883868
2. S. G. Saakyan, ‘‘Waves in inhomogeneous elastic media,’’ Sov. Phys., Dokl. 31, 852–853 (1986).
3. G. G. Bulychev and S. G. Pshenichnov, ‘‘Axisymmetric problem of dynamics of an elongated elastic inhomogeneous cylinder,’’ Stroit. Mekh. Raschet Sooruzh., No. 4, 35–37 (1989).
4. J. E. Gubernatis and A. A. Maradudin, ‘‘A Laguerre series approach to the calculation of wave properties for surfaces of inhomogeneous elastic materials,’’ Wave Motion 9, 111–121 (1987).
https://doi.org/10.1016/0165-2125(87)90044-8
5. T. Ohyoshi, ‘‘New stacking layer elements for analyses of reflection and transmission of elastic waves to inhomogeneous layers,’’ Mech. Res. Commun. 20, 353–359 (1993).
https://doi.org/10.1016/0093-6413(93)90050-x