1. V. A. Izvozchikov, G. A. Bordovskii, V. T. Avanesyan, and V. A. Bordovskii, Phys. Status Solidi 49, K173 (1978).
2. J. R. Gavarri and D. Wegel, C. R. Seances Acad. Sci., Vie Acad. 275, C1267 (1972).
3. V. A. Izvozchikov and O. A. Timofeev, Photoconducting Lead Oxides in Electronics (Énergiya, Leningrad, 1979) [in Russian].
4. V. T. Avanesyan, G. A. Bordovskii, and S. A. Potachov, Wiley Encyclopedia of Electrical and Electronics Online: Photodielectric Effect (Wiley, New York, 2001).
5. V. T. Avanesyan and G. A. Bordovskii, J. Non-Cryst. Solids 351, 2849 (2005).