CHATZARAKIS, G. E.; KHATIBZADEH, H.; MILIARAS, G. N.; STAVROULAKIS, I. P. Asymptotic behavior of higher-order neutral difference equations with general arguments. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 3, p. 430–450, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2429. Acesso em: 14 apr. 2025.