1. For a complete review, see Synthetic Modulated Structures, edited by L. L. Chang, and B. C. Giessen, (Academic, New York, 1985).
2. J. DuMond and J. P. Youtz, J. Appl. Phys. 11, 357, (1940).
3. J. E. Hilliard, in Phase Transformations, Ed. H. I. Aaronson, ASM (1970), p. 557.
4. C. M. Falco, I. K. Schuller, in reference 1, p. 339.
5. D. B. McWhan, in reference 1, p. 43.