SARTABANOV, Z.; OMAROVA, B.; KERIMBEKOV, A. RESEARCH OF MULTIPERIODIC SOLUTIONS OF PERTURBED LINEAR AUTONOMOUS SYSTEMS WITH DIFFERENTIATION OPERATOR ON THE VECTOR FIELD. Physico-mathematical series, [S. l.], n. 1, p. 5–13, 2020. Disponível em: http://550300.0ncwlf7ax.asia/physics-mathematics/article/view/386. Acesso em: 4 дек. 2024.