1. L. Knopoff, inHigh Pressure Physics and Chemistry, R. S. Bradley, ed. (Academic, New York, 1963), p. 227.
2. J. Ross Macdonald,Rev. Mod. Phys. 38:669 (1966);Rev. Mod. Phys. 41:316 (1969).
3. A. L. Ruoff and L. C. Chhabildas, inHigh Pressure Science and Technology, Sixth AIRAPT Conference, Vol. 1, K. D. Timmerhaus and M. S. Barber, eds. (Plenum, New York, 1978).
4. B. K. Godwal, S. K. Sikka, and R. Chidambaram,Phys. Rep. 102:121 (1983).
5. R. Jeanloz,Phys. Rev. B 38:805 (1988).