Sartabanov Zhaishylyk Almaganbetovich, Aitenova Gulsezim Muratovna, и Toremuratova Gulbarshyn Spartakkyzy. «MUTUAL REDUCTION OF LINEAR MULTIPERIODIC SYSTEMS OF EQUATIONS WITH DIFFERENTIATION OPERATORS». Известия НАН РК. Серия физико-математическая, no. 6 (декабрь 15, 2021): 128–135. просмотрено декабрь 23, 2024. http://89.250.84.46/physics-mathematics/article/view/2902.