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Abilhan Umbetovich Umbetov, Makhabbat Zhaksylykovna Umbetova, Gabit Mukhitovich Abildayev, Saule Svyazkhanovna Baizakova, Samal Arynovna Zhamalova, Arailym Boranbayevna Konussova & Kalamkul Kapenovna Dosmagulova. Studies on Transformation and Interference of the Laser Radiation in Composite Crystal Optical Systems. NAER-V11 2021, 8-29.