BORELL, Christer. Convexity of measures in certain convex cones in vector space $\sigma$-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 53, p. 125–144, 1983. DOI: 10.7146/math.scand.a-12021. Disponível em: https://journals.msp.org/mscand/article/view/1649. Acesso em: 25 jul. 2026.