WESTON, J. D. The decomposition of a continuous linear functional into non-negative components. Mathematica Scandinavica, Berkeley, CA, United States, v. 5, p. 54–56, 1957. DOI: 10.7146/math.scand.a-10489. Disponível em: https://journals.msp.org/mscand/article/view/2834. Acesso em: 25 jul. 2026.