Surjective characterizations of metrizable $LC^{\infty}$-spaces. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 85, p. 43–47, 1993. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/452. Acesso em: 14 dec. 2025.