1. Yu. V. Rud', Izv. Vyssh. Uchebn. Zaved., Fiz. 29, 68 (1986).
2. F. P. Kesamanly, V. Yu. Rud', Yu. V. Rud', and G. V. Shok, Fiz. Tekh. Poluprovodn. (St. Petersburg) 33, 513 (1999) [Semiconductors 33, 483 (1999)].
3. S. G. Konnikov, D. Melebaev, V. Yu. Rud', and M. Serginov, Pis'ma Zh. Tekh. Fiz. 18(12), 38 (1992) [Sov. Tech. Phys. Lett. 18, 382 (1992)].
4. S. G. Konnikov, D. Melebaev, V. Yu. Rud', et al., Pis'ma Zh. Tekh. Fiz. 19(4), 57 (1993) [Tech. Phys. Lett. 19, 124 (1993)].
5. S. G. Konnikov, G. D. Melebaeva, D. Melebaev, et al., Pis'ma Zh. Tekh. Fiz. 18(24), 32 (1992) [Sov. Tech. Phys. Lett. 18, 806 (1992)].