KYDYRBEKULY, A. TO THE ANALYSIS OF STABILITY OF MOVEMENT OF THE NONLINEAR MECHANICAL SYSTEMS. Recent Contributions to Physics, [S. l.], v. 2008, n. 1, p. 142–146, 2008. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/1473. Acesso em: 9 feb. 2026.