1.
Stoeva D. EXISTENCE OF STRONG M-BASES IN NONSEPARABLE BANACH SPACES. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2004 Dec. 12 [cited 2025 Jan. 15];96:155-61. Available from: https://admin.uni-sofia.bg/index.php/fmi/article/view/169