1. Vasil’ev, A.M. and Landsman, A.P. (1971) Poluprovodnikcvyefotopreobrasavateli (Semiconductor photoconverters), Sov. Radio, Moscow (in Russian).
2. Hovel, H. J. (1975) Semiconductors and semimetals, Vol. 11, Solar Cells, Acad. Press, New York, London.
3. Koltun, M.M. (1985) Optica i metrologia solnechnykh elementov (Optics and metrology of solar cells), Nauka, Moscow (in Russian).
4. Chopra, K.L. (1983) Thin film solar cells, Plenum Press, New York — London.
5. Grilikhes, V.A., Orlov, P.P. and Popov, L.B. (1984) Solnechnaya energya i kosmicheski polioty (Solar energy and space flights), Nauka, Moscow (in Russian).