DERRY, Douglas. Polygons of Order $n$ in $L_n$ with $n+2$ Vertices. Mathematica Scandinavica, Berkeley, CA, United States, v. 23, p. 73–95, 1968. DOI: 10.7146/math.scand.a-10899. Disponível em: https://journals.msp.org/mscand/article/view/2451. Acesso em: 25 jul. 2026.