NENYA, O.I. Permanence of a discrete predator-prey system with nonmonotonic functional responses and endless delay. Carpathian Mathematical Publications, [S. l.], v. 7, n. 1, p. 91–100, 2015. DOI: 10.15330/cmp.7.1.91-100. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/1387. Acesso em: 4 may. 2024.