NIKIFOROVA, N. S.; KHUSAINOV, D. Ya. Stability of one difference equation with positive coefficients. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 9, p. 1276–1280, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4723. Acesso em: 5 dec. 2025.