1. Shay, T. L., Wernick, T. H.: "Ternary Chalcopyrite Semiconductors" Growth, Electronics, Properties and Applications. Pergamon, 1975.
2. Baltramiejunas, R., Vaitkus, J., Veleckas, D., Tychina, I., Tkachyuk, I.: Litov. Fiz. Sb. 17 (1977) 621.
3. Gorban, I.S., Korets, N.S., Kryskov, T.A., Chukichev, M.V.: Phys. Status Solidi A 115 (1989) 555.
4. Medvedkin, G.A., Rud, Y.V., Tairov, M.A.: Fiz. Tekh. Poluprovodn. 23 (1989) 1002; Sov. Phys. Semicond. (Engl. Transl.) 23 (1989) 625.