STØRMER, Erling. Mapping cones of positive maps. Mathematica Scandinavica, Berkeley, CA, United States, v. 108, n. 2, p. 223–232, 2011. DOI: 10.7146/math.scand.a-15168. Disponível em: https://journals.msp.org/mscand/article/view/529. Acesso em: 24 jul. 2026.