1. B. I. Smirnov, Dislocation Structure and the Hardening of Crystals [in Russian] (Nauka, Leningrad, 1981).
2. Yu. A. Osip’yan and V. F. Petrenko, in Problems of the Strength and Plasticity of Solids [in Russian], edited by S. N. Zhurkov (Nauka, Leningrad, 1979), pp. 118–128.
3. L. D. Landau and E. M. Lifshitz, Electrodynamics of Continuous Media [in Russian] (Nauka, Moscow, 1982).
4. Yu. I. Sirotin and M. P. Shaskol’skaya, Fundamentals of Crystal Physics [in Russian] (Nauka, Moscow, 1975).
5. J. F. Nye, Physical Properties of Crystals (Clarendon Press, Oxford, 1957; Mir, Moscow, 1960).