HENRION, René; SEEGER, Alberto. Condition number and eccentricity of a closed convex cone. Mathematica Scandinavica, Berkeley, CA, United States, v. 109, n. 2, p. 285–308, 2011. DOI: 10.7146/math.scand.a-15190. Disponível em: https://journals.msp.org/mscand/article/view/507. Acesso em: 24 jul. 2026.