Sartabanov Zhaishylyk Almaganbetovich, Aitenova Gulsezim Muratovna и Toremuratova Gulbarshyn Spartakkyzy 2021. MUTUAL REDUCTION OF LINEAR MULTIPERIODIC SYSTEMS OF EQUATIONS WITH DIFFERENTIATION OPERATORS. Известия НАН РК. Серия физико-математическая. 6 (дек. 2021), 128–135. DOI:https://doi.org/10.32014/2021.2518-1726.109.