Petrov, V.V., A.A. Kryuchyn, I.V. Gorbov, A.V. Pankratova, D.Yu. Manko, Yu.O. Borodin, and O.V. Shikhovets. “Formation of Submicron Relief Structures on the Surface of Sapphire Substrates”. Physics and Chemistry of Solid State 24, no. 2 (June 14, 2023): 298–303. Accessed May 10, 2024. https://journals.pnu.edu.ua/index.php/pcss/article/view/6706.