Almost periodic but possibly not Bochner almost periodic solutions of nonlinear discrete systems. Neliniini Kolyvannya, [S. l.], v. 17, n. 3, p. 407–418, 2014. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/753. Acesso em: 21 jan. 2026.