SARTABANOV, Z.; OMAROVA, B.; KERIMBEKOV, A. RESEARCH OF MULTIPERIODIC SOLUTIONS OF PERTURBED LINEAR AUTONOMOUS SYSTEMS WITH DIFFERENTIATION OPERATOR ON THE VECTOR FIELD. Известия НАН РК. Серия физико-математическая, [S. l.], n. 1, p. 5–13, 2020. Disponível em: http://91834.libg.asia/physics-mathematics/article/view/386. Acesso em: 13 мар. 2025.