1. H. Lamb: Philos. Trans. R. Soc. London A 203, 1 (1904)
2. W.M. Ewing, W.S. Jardetzky, F. Press: Elastic Waves in Layered Media ( McGraw-Hill, New York 1957 )
3. J. Miklowitz: The Theory of Elastic Waves and Wavequides ( North-Holland, Amsterdam 1978 )
4. Y.H. Pao, R.R. Gajewski: In Physical Acoustics, ed. W.P. Mason, R.N. Thurston, Vol. 13 (Academic Press, New York 1977) p. 183
5. F. Ziegler: Z. Angew. Math, u. Mech. 65, T15 (1985)