HARRINGTON, J.; JONES, L. The irreducibility of power compositional sextic polynomials and their Galois groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 120, n. 2, p. 181–194, 2017. DOI: 10.7146/math.scand.a-25850. Disponível em: https://www.mscand.dk/article/view/25850. Acesso em: 22 jan. 2022.