PÉREZ-GARCÍA, David; VILLANUEVA, Ignacio. Unconditional bases in tensor products of Hilbert spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 96, n. 2, p. 280–288, 2005. DOI: 10.7146/math.scand.a-14957. Disponível em: https://journals.msp.org/mscand/article/view/740. Acesso em: 24 jul. 2026.