1. M. P. Tonkonogov, Usp. Fiz. Nauk, 168, Vyp. 1, 29–54 (1998).
2. V. Ya. Medvedev and M. P. Tonkonogov, Russ. Phys. J., 33, No. 11, 958–962 (1990).
3. V. M. Timokhin, Pricladn. Fiz., No. 1, 12–19 (2012).
4. V. A. Kalytka, Z. K. Baimukhanov, and A. D. Mekhtiyev, Doklady Akadem. Nauk. Vyssh. Shkoly Ross. Feder., No. 3 (32), 7–21 (2016).
5. V. A. Kalytka and T. Yu. Nikonova, Proceedings of the XIII-th International Scientific-Tech. Conf. "Actual Problems of Electronic Instrument Engineering” (APEIE-2016) . The electronic physical section [in Russian], Izd. NGTU, Novosibirsk (2016).