1. G. Birnbaum and J. Franeau, J. Appl. Phys. 20, 81 (1949).
2. G. Birnbaum, S. J. Kryder, and H. Lyons, J. Appl. Phys. 22, 95 (1951).
3. V. B. Akhmanaev, Yu. V. Medvedev, and A. S. Petrov, Elektron. Tekh., Ser. Elektron. SVCH 4, 48 (1981).
4. J. P. Spoonhower, Photogr. Sci. Eng. 24, 130 (1980).
5. S. M. Ryvkin, Photoelectric Effects in Semiconductors (Fizmatgiz, Moscow, 1963; Consultants Bureau, New York, 1964).