SAMOILENKO , A. M. Investigation of a discrete dynamical system in the vicinity of quasi-periodic trajectory . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 12, p. 1702–1711, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8195. Acesso em: 5 dec. 2025.