A. E. Belyaev, N. I. Klyui, R. V. Konakova, A. N. Lukyanov, B. A. Danil'chenko, Yu. N. Sveshnikov, A. N. Klyui, “Electroreflectance study of the effect of $\gamma$ radiation on the optical properties of epitaxial GaN films”, Fizika i Tekhnika Poluprovodnikov, 46:3 (2012), 317–320; Semiconductors, 46:3 (2012), 302–305
