Semkiv І.V., Kashuba А.І., H.A. Ilchuk, and M.V. Chekaylo. “Symmetrical Analysis Phonon Modes of Crystal -Ag8SnSe6”. Physics and Chemistry of Solid State 16, no. 2 (June 15, 2015): 257–260. Accessed November 23, 2024. https://vps.pnu.edu.ua/index.php/pcss/article/view/1667.