GOMILKO, A. M.; GORODNII, M. F.; LAGODA, O. A. On the Boundedness of a Recurrence Sequence in a Banach Space. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 10, p. 1410–1418, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4009. Acesso em: 5 dec. 2025.