JACKSON, S. B. Arcs of Local Cyclic Order Three. MATHEMATICA SCANDINAVICA, [S. l.], v. 28, p. 355–365, 1971. DOI: 10.7146/math.scand.a-11030. Disponível em: https://tidsskrift.dk/math/article/view/11030. Acesso em: 14 aug. 2026.