1. Valisheva, N.A., Kornyushkin, N.A., Kuryshev, G.L., and Kovchavtsev, A.P., Fiz. Tekh. Poluprovodn., 1996, vol. 30, no. 5, p. 914.
2. Valisheva, N.A., Guzev, A.A., Kovchavtsev, A.P., et al., Mikroelektronika, 2009, vol. 38, no. 2, p. 99.
3. Sorokin, I.N. and Kozlov, V.I., Izv. Akad. Nauk SSSR, Neorg. Mat., 1979, vol. 15, no. 3, p. 53.
4. Grigorovich, S.L., Volkov, A.S., Lotsman, A.P., and Afanas’ev, A.K., Elektron. Tekh., Mater., 1981, no. 3 (152), p. 39.
5. Shirokov, A.A., Markova, E.A., and Zakharov, I.S., Izv. Akad. Nauk SSSR, Neorg. Mat., 1982, vol. 18, no. 9, p. 1459.