1. G. V. Berezhkova, Filamentary Crystals [in Russian], Nauka, Moscow (1969).
2. S. Z. Bokshtein, S. T. Kishkin, M. P. Nazarov, and I. L. Svetlov, in: Physics of Deformation Hardening of Single Crystals [in Russian], Naukova Dumka, Kiev (1972), pp. 201?215.
3. S. U. Gol'denberg and N. N. Demidov, Deposited in VINITI, Reg. No. 628-77.
4. V. G. Lyuttsau, Yu. M. Fishman, and I. L. Svetlov, Kristallografiya,10, No. 6, 845 (1965).
5. O. Nittono, Jpn. J. Appl. Phys.,10, No. 2, 188 (1971).