POIRIER SCHMITZ, Alfredo. Invariant Measures and a Weak Shadowing Condition. Pro Mathematica, [S. l.], v. 26, n. 51-52, p. 35–47, 2012. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8535. Acesso em: 24 dic. 2025.