On the invariant tori of quasilinear countable systems of differential equations defined on infinite-dimensional tori. Neliniini Kolyvannya, [S. l.], v. 23, n. 4, p. 553–564, 2020. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/1009. Acesso em: 21 jan. 2026.