RAO, T. S. S. R. K.; ROY, A. K. Intersection properties of balls in tensor products of some Banach spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 65, p. 103–118, 1989. DOI: 10.7146/math.scand.a-12269. Disponível em: https://journals.msp.org/mscand/article/view/1381. Acesso em: 24 jul. 2026.