1. A. Leichenko, E. Sheshin, and A. Shchuka, NTB. Elektronika 94(6), 94 (2007).
2. A. N. Obraztsov and V. I. Klesch, J. Nanoelectron. Optoelectron., No. 4, 207 (2009).
3. N. P. Aban’shin, B. I. Gorfinkel’, and A. N. Yakunin, Tech. Phys. Lett. 37, 336 (2011).
4. A. V. Eletskii, Phys. Usp. 45, 369 (2010).
5. N. P. Aban’shin, B. I. Gorfinkel’, and A. N. Yakunin, Proceedings of Int. Symp. “Nano and Giga Challenges in Electronics, Photonics and Renewable Energy” (Moscow-Zelenograd, 2011), p. 198.