1. B. J. Lazan, ?Damping of Materials and Members in Structural Mechanics? (Pergamon Press, Oxford, 1968) pp. 201?62.
2. J. W. Jensen,Metalscope May (1965) 7.
3. D. W. James,Mater. Sci. Engng 4 (1969) 1.
4. I. G. Ritchie, Z-L. Pan, K. W. Sprungmann, H. K. Schmidt andR. Dutton,Canad. Metall. Q. 26 (1987) 239.
5. S. A. Golovin andI. S. Golovin, in ?Proceedings of the 9th Conference on Internal Friction and Ultrasonic Attenuation in Solids?, Beijing, China, edited by T. S. K� (Pergamon Press, Beijing, 1989) pp. 345?52.