1. Sanditov, D.S. and Bartenev, G.M., Fizicheskie svoistva neuporyadochennykh struktur (Physical Properties of Disordered Structures), Novosibirsk: Nauka, 1982.
2. Freitas, J., Shimakawa, K., and Kugler, S., Some remarks on the glass-transition temperature in chalcogenide glasses: A correlation with the microhardness ruben, Chalcogenide Lett., 2013, vol. 10, no. 1, pp. 39–43.
3. Kugler, S. and Shimakawa, K., Amorphous Semiconductors, Cambridge: Cambridge Univ. Press, 2015.
4. Balta Calleja, F.J., Sanditov, D.S., and Privalko, V.P., Review: The microhardness of non-crystalline materials, J. Mater. Sci., 2002, vol. 37, no. 21, pp. 4507–4516.
5. Fakirov, S., The relationship between the microhardness and glass transition temperature of inorganic glasses compared with polymeric glasses, Int. J. Polym. Mater. Polym. Biomater., 2005, vol. 54, no. 12, pp. 1185–1189.