SAMOILENKO, A. M.; TEPLINSKY, Yu. V. Invariant tori of linear countable systems of discrete equations given on an infinite-dimensional torus. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 2, p. 244–251, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4958. Acesso em: 6 dec. 2025.