CHRISTENSEN, Erik. Bilinear forms, Schur multipliers, complete boundedness and duality. Mathematica Scandinavica, Berkeley, CA, United States, v. 129, n. 3, 2023. DOI: 10.7146/math.scand.a-140205. Disponível em: https://journals.msp.org/mscand/article/view/67. Acesso em: 24 jul. 2026.