1. Feltz, A., Amorphe und glasartige anorganische Festkorper, Berlin: Akademie, 1983. Translated under the title Amorfnye i stekloobraznye neorganicheskie tverdye tela, Moscow: Mir, 1986 [in German and in Russian].
2. Shvarts, K.K., Fizika opticheskoi zapisi v dielektrikakh i poluprovodnikakh (Physics of Optical Recording in Dielectrics and Semiconductors), Riga: Zinatne, 1986 [in Russian].
3. Semak, D.G., Rizak, V.M., and Rizak, I.M., Foto-termostrukturnye prevrashcheniya khal’kogenidov (Photo-Thermostructural Transformations of Chalcogenides) Uzhgorod: Zakarpattya, 1999 [in Ukrainian].
4. Elektronnye yavleniya v khal’kogenidnykh stekloobraznykh poluprovodnikakh (Electronic Phenomena in Vitreous Chalcogenide Semiconductors), Tsendin, K.D., Ed., St. Petersburg: Nauka, 1996.
5. Popescu, M.A., Non-Crystalline Chalcogenides, Dordrecht: Kluwer, 2000.