NAGEL, Rainer J. Ideals in Ordered Locally Convex Spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 29, p. 259–271, 1971. DOI: 10.7146/math.scand.a-11052. Disponível em: https://journals.msp.org/mscand/article/view/2300. Acesso em: 25 jul. 2026.