1. N. I. Noskova, in Structure, Phase Transitions, and Properties of Nanocrystalline Alloys [in Russian], Institute of Metal Physics, Ural Branch of the Russsian Academy of Sciences Press, Ekaterinburg (1997), p. 5.
2. S. N. Zhurkov, V. I. Betekhtin, and A. I. Petrov, Fiz. Metall. Metalloved. 23, 1101 (1967).
3. V. A. Stepanov, N. N. Peschanskaya, and V. V. Shpeizman, Strength and Relaxation Processes in Solids [in Russian], Nauka, Leningrad, (1984), 246 pp.
4. A. H. Chokski, A. Rosen, J. Karch, and H. Gleiter, Scr. Metall. Mater. 23, 1679 (1989).
5. A. M. El-Sherik, U. Erb, G. Palumbo, and K. T. Aust, Scr. Metall. Mater. 27, 1185 (1992).