VASHISHT, L. K. On Frames in Banach Spaces. Communications in Mathematics and Applications, [S. l.], v. 3, n. 3, p. 313–332, 2012. DOI: 10.26713/cma.v3i3.215. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/215. Acesso em: 2 may. 2024.