TEAM, S. Generalized Frames: N. A. Sheikh. Thai Journal of Mathematics, [S. l.], v. 3, n. 2, p. 185–191, 2005. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/23. Acesso em: 6 may. 2024.