GALE, D.; KLEE, V. Continuous Convex Sets. MATHEMATICA SCANDINAVICA, [S. l.], v. 7, p. 379–391, 1959. DOI: 10.7146/math.scand.a-10585. Disponível em: https://www.mscand.dk/article/view/10585. Acesso em: 4 may. 2024.