1. V. P. Gribkovskii, The Theory of Light Absorption and Emission in Semiconductors [in Russian], Minsk (1975).
2. S. I. Radautsan and A. E. Tsurkan, Zinc Telluride [in Russian], Kishinev (1972).
3. V. K. Kononenko, Zh. Prikl. Spektrosk.,23, No. 3, 528?553 (1975).
4. K. Takahashi, Bull. Tokyo Inst. Technol., No. 100, 91?105 (1970).
5. A. E. Tsurkan, V. I. Verlan, and S. A. Rebrov, Production and Examination of New Semiconductor-Engineering Materials [in Russian], Kishinev (1980), pp. 129?138.