HAI, Le Mau; VAN KHUE, Nguyen. Some characterizations of the properties (DN) and ($\tilde\Omega$). MATHEMATICA SCANDINAVICA, [S. l.], v. 87, n. 2, p. 240–250, 2000. DOI: 10.7146/math.scand.a-14307. Disponível em: https://tidsskrift.dk/math/article/view/14307. Acesso em: 14 aug. 2026.