1. L. V. Volkov, V. E. Lubchenko, and O. A. Tikhomirov, Radiotekh. Elektron. 40(3), 322–324 (1995). (In Russian).
2. E. R. Brown, Solid-State Electron. 48, 2051–2053 (2004).
3. V. I. Shashkin, V. M. Daniltsev, O. I. Khrykin, A. V. Murel, Yu. I. Chechenin, and A. V. Shabanov, Proc. of Int. Semicon. Dev. Res. Symp. (ISDRS), Charlottseville, USA, 1997, pp. 147–150.
4. V. I. Shashkin, V. L. Vaks, V. M. Daniltsev, A. V. Maslovsky, A. V. Murel, S. V. Nikiforov, O. I. Khrykin, and Y. I. Chechenin, Radiophys. Quantum Electron. 48(6), 544–551 (2005).
5. M. J. Kearney and I. Dale, GEC J. Res. 8(1), 1–12 (1990).