JAIN, P. K.; SINHA, D. P. SOME CHARACTERIZATIONS OF UNCONDITIONAL SCHAUDER DECOMPOSITIONS OF BANACH SPACES. Tamkang Journal of Mathematics, [S. l.], v. 21, n. 4, p. 359–363, 1990. DOI: 10.5556/j.tkjm.21.1990.4683. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4683. Acesso em: 11 aug. 2022.