ALDAZHAROVA, M. M. Bounds and stability of solutions of the system of Differential equations. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 73, n. 2, p. 3–7, 2012. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/131. Acesso em: 22 dec. 2024.