1. G. A. Odishariya and V. N. Shrednik, Dokl. Akad. Nauk SSSR 182, 542 (1968) [Sov. Phys. Dokl. 13, 929 (1968)].
2. O. L. Golubev, T. I. Sudakova, and V. N. Shrednik, Zh. Tekh. Fiz. 70 (2000) (in press) [Tech. Phys. 45 (2000) (in press)].
3. V. N. Shrednik, in Current Problems of Crystallography, Ed. by B. K. Vainshtein and A. A. Chernov (Nauka, Moscow, 1975), pp. 150–171.
4. V. M. Gavrilyuk, A. G. Naumovets, and A. G. Fedorus, Zh. Éksp. Teor. Fiz. 51, 1332 (1966) [Sov. Phys. JETP 24, 899 (1966)].
5. E. V. Klimenko and V. K. Medvedev, Fiz. Tverd. Tela (Leningrad) 10, 1986 (1968) [Sov. Phys. Solid State 10, 1562 (1969)].