1. A. V. Nikiforov, Yu. G. Nosov, M. B. Mukhamedzhanova, O. V. Klyavin, and P. I. Antonov, Fiz. Tverd. Tela (Leningrad) 29, 485 (1987) [Sov. Phys. Solid State 29, 275 (1987)].
2. G. V. Berezhkova, N. P. Skvortsova, A. V. Nikiforov, Yu. G. Nosov, V. R. Regel’, and M. A. Chernysheva, Fiz. Tverd. Tela (Leningrad) 31(2), 252 (1989) [Sov. Phys. Solid State 31, 321 (1989)].
3. A. V. Nikiforov and O. V. Klyavin, Fiz. Tverd. Tela (St. Petersburg) 38, 2744 (1996) [Phys. Solid State 38, 1505 (1996)].
4. B. I. Smirnov and T. S. Orlova, Fiz. Tverd. Tela (St. Petersburg) 38, 2431 (1996) [Phys. Solid State 38, 1336 (1996)].
5. B. I. Smirnov, Dislocation Structure and Hardening of Crystals [in Russian], Nauka, Leningrad (1981), 232 pp.