KHAR’KOV, V. M. Asymptotic representations of one class of solutions of a second-order difference equation with power nonlinearity. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 6, p. 839–854, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3062. Acesso em: 5 dec. 2025.