ALVIN, Lori; KELLY, James P. Shadowing in countable state shifts over compact alphabets. Topological Methods in Nonlinear Analysis, [S. l.], p. 1–33, 2026. DOI: 10.12775/TMNA.2025.063. Disponível em: https://apcz.umk.pl/TMNA/article/view/76299. Acesso em: 7 oct. 2026.