1. G. B. Abdulaev, Sh. M. Alekperova, and M. I. Agaev, in: Summaries of Reports of the All-Union Symposium on Plasma Physics and Energy Instabilities in Solids [in Russian], Vilnius (1971).
2. G. A. Asadov, Candidate's Dissertation, Baku (1971).
3. A. L. Shabalov, Candidate's Dissertation, Baku (1972).
4. V. M. Glazov, A. A. Aivazov, A. V. Zelenov, and G. I. Vadov, Fiz. Tekh. Poluprovodn.,10, 636 (1976).
5. A. A. Aivazov, Fiz. Tekh. Poluprovodn.,11, No. 1, 178 (1977).