STOEVA, D. EXISTENCE OF STRONG M-BASES IN NONSEPARABLE BANACH SPACES. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 96, p. 155–161, 2004. Disponível em: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/169. Acesso em: 23 nov. 2024.