BEANLAND, Kevin; CAUSEY, Ryan M. Quantitative factorization of weakly compact, Rosenthal, and $\xi$-Banach-Saks operators. Mathematica Scandinavica, Berkeley, CA, United States, v. 123, n. 2, p. 297–319, 2018. DOI: 10.7146/math.scand.a-105124. Disponível em: https://journals.msp.org/mscand/article/view/260. Acesso em: 24 jul. 2026.