JACKSON, S. B. Arcs of Local Cyclic Order Three. Mathematica Scandinavica, Berkeley, CA, United States, v. 28, p. 355–365, 1971. DOI: 10.7146/math.scand.a-11030. Disponível em: https://journals.msp.org/mscand/article/view/2266. Acesso em: 25 jul. 2026.