Koporkh К.М. On space of open quotient maps of a convergent sequence. Carpathian Mathematical Publications, [S. l.], v. 4, n. 1, p. 58–66, 2012. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/2406. Acesso em: 1 may. 2025.