1. J.D. Achenbach: Wave Propagation in Elastic Solids ( North-Holland, Amsterdam, 1973 ).
2. K.F. Graff: Wave Motion in Elastic Solids (Ohio State University Press, Columbus, Ohio, 1975 ).
3. I.A. Viktorov: Sov. Phys. Acoustics, 25, 1–9, (1979).
4. G.A. Maugin: In Advances in Applied Mechanics, ed. J.W. Hutchinson, vol. 23 ( Academic Press, New York, 1983 ), pp. 373–434
5. A.A. Maradudin: In Nonequilibrium Phonon Dynamics, ed. W. Bron ( Plenum Press, New York, 1985 ), pp. 395–599.