1. I. F. Kastrubai, F. P. Korshunov, V. P. Markevich, et al., Dokl. Akad. Nauk BSSR,31, No. 4, 306?308 (1987).
2. I. I. Kolkovskii, P. F. Lugakov, and V. V. Shusha, Fiz. Tekh. Poluprovodn.,23, No. 5, 885?887 (1989).
3. I. I. Kolkovskii, P. F. Lugakov, and V. V. Shusha, Editorial in Izv. Vyssh. Uchebn. Zaved., Fiz., Submitted to VINITI 04.15.88, No. 2871, Tomsk (1988).
4. I. I. Kolkovskii, P. F. Lugakov, and V. V. Shusha, Phys. Status Solidi A,127, 103?109 (1991).
5. O. F. Afonin, V. M. Volle, V. B. Voronkov, and I. V. Grekhov, Élektrotekhnicheskaya Promst. Ser. ?Preobrazovatel'naya Tekhnika,? No. 9(104), 1?3 (1978).