SAMOILENKO, A. M.; SLYUSARCHUK, V. E.; SLYUSARCHUK, V. V. Investigation of a nonlinear difference equation in a Banach space in a neighborhood of a quasiperiodic solution. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 12, p. 1661–1676, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5171. Acesso em: 5 dec. 2025.