KLEE, Victor. Asymptotes and Projections of Convex Sets. Mathematica Scandinavica, Berkeley, CA, United States, v. 8, p. 356–362, 1960. DOI: 10.7146/math.scand.a-10617. Disponível em: https://journals.msp.org/mscand/article/view/2729. Acesso em: 25 jul. 2026.