FERRANDO, Juan Carlos. When does $\mathrm{bvca} (\Sigma,X)$ Contain a Copy of $l_\infty$?. Mathematica Scandinavica, Berkeley, CA, United States, v. 74, p. 271–274, 1994. DOI: 10.7146/math.scand.a-12496. Disponível em: https://journals.msp.org/mscand/article/view/1134. Acesso em: 25 jul. 2026.