On $\boldsymbol{k}$-deficit Banach Frames. Armenian Journal of Mathematics. Armenian Journal of Mathematics, [S. l.], v. 2, n. 4, p. 146–154, 2009. Disponível em: http://test.armjmath.sci.am/index.php/ajm/article/view/62. Acesso em: 6 oct. 2024.