Analysis of equilibrium positions of a system that describes the interaction of viruses and the immune system. Neliniini Kolyvannya, [S. l.], v. 23, n. 1, p. 69–76, 2020. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/977. Acesso em: 11 apr. 2026.