1. Abramowitz, M. and Stegun, I. (1970). Handbook of mathematical functions, Nat. Bureau Standarts, Washington.
2. Achenbach, J. D. (1973). Wave propagation in elastic solids, North- Holland, Amsterdam.
3. Achenbach, J. D. (2003). Reciprocity in elastodynamics, Cambridge Univ. Press, Cambridge.
4. Beskos, D. E. (1987). “Boundary element methods in dynamic analysis.” Appl. Mech. Rev., Vol. 40, No. 1, pp. 1–23.
5. Eringen, A. C. and Suhubi, E. S. (1975). Elastodynamics, Vol. II, Academic Press, New York.