Sartabanov Zhaishylyk Almaganbetovich, Omarova Bibigul Zharbolovna, и Kerimbekov Akylbek. «RESEARCH OF MULTIPERIODIC SOLUTIONS OF PERTURBED LINEAR AUTONOMOUS SYSTEMS WITH DIFFERENTIATION OPERATOR ON THE VECTOR FIELD». Известия НАН РК. Серия физико-математическая, no. 1 (февраль 4, 2019): 5–13. просмотрено май 5, 2024. https://journals.nauka-nanrk.kz/physics-mathematics/article/view/1155.