Pozhivatenko, V.V. “Ionic Character, Phase Transitions, and Metallization in Alkaline-Earth Metal Oxides and Chalcogenides under Pressure”. Ukrainian Journal of Physics 65, no. 11 (November 12, 2020): 1022. Accessed November 25, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019375.