BOKALO, B.M.; KOLOS, N.M. On operations on some classes of discontinuous maps. Carpathian Mathematical Publications, [S. l.], v. 3, n. 2, p. 36–48, 2011. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/3063. Acesso em: 21 nov. 2024.