STEFANOV, S. A Borsuk-Ulman type theorem for $\mathbb{Z}_{4}$-actions. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 87, p. 279–286, 1995. Disponível em: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/421. Acesso em: 24 nov. 2024.