1. F. P. Kesamanly, V. Yu. Rud’, and Yu. V. Rud’, Semiconductors 30, 1001 (1996).
2. F. P. Kesamanly, V. Yu. Rud’, and Yu. V. Rud’, Semiconductors 33, 483 (1999).
3. Z. D. Kovalyuk, V. N. Katerynchuk, A. V. Zaslonkin, M. V. Tovarnitskii, and V. I. Duplavyi, Ukraine Patent No. 101001, Byull. No. 4 (2013).
4. N. M. Mekhtiev, Yu. V. Rud’, and E. Yu. Salaev, Sov. Phys. Semicond. 12, 924 (1978).
5. V. N. Katerynchuk, Z. D. Kovalyuk, and A. V. Zaslonkin, Tech. Phys. Lett. 25, 520 (1999).