1. V. E. Panin, V. A. Likhachev, and Yu. V. Grinyaev, Structural Levels of Deformation in Solids (Nauka, Novosibirsk, 1985) [in Russian].
2. B. I. Smirnov, Dislocation Structure and Strain Hardening of Crystals (Nauka, Leningrad, 1981) [in Russian].
3. Encyclopedia of Physics, Ed. by S. Flügge, Vol. VIa/1: J. F. Bell, The Experimental Foundations of Solid Mechanics, Part 2 (Springer, Berlin, 1973; Nauka, Moscow, 1984).
4. N. A. Shaposhnikov, Mechanical Testing of Metals (Mashgiz, Moscow, 1954), p. 68 [in Russian].
5. V. I. Startsev, V. Ya. Il’ichev, and V. V. Pustovalov, Plasticity and Strength of Metals and Alloys at Low Temperatures (Metallurgiya, Moscow, 1975) [in Russian].