1. S.S. Hecker: Los Alamos Sci., 2000, vol. I (26), p. 16.
2. S.S. Hecker: Los Alamos Sci., 2000, vol. II (26), p. 290.
3. A.M. Boring and J.L. Smith: Los Alamos Sci., 2000, vol. I (26), p. 90.
4. J.L. Smith and E.A. Kmetko: J. Less Common Met., 1983, vol. 90, p. 83.
5. J. Friedel: in The Physics of Metals, J.M. Ziman, ed., Cambridge University Press, New York, NY, 1969, p. 340.