ANDENAES, Per Roar. Extreme Boundaries and continous affine functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 40, p. 197–208, 1977. DOI: 10.7146/math.scand.a-11689. Disponível em: https://journals.msp.org/mscand/article/view/1955. Acesso em: 25 jul. 2026.