Separately continuous mappings of many variables with values in $\sigma$-metrizable spaces. Neliniini Kolyvannya, [S. l.], v. 2, n. 3, p. 337–344, 1999. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/68. Acesso em: 22 jan. 2026.