MILLS, W. H. The factorization of certain quadrinominals. Mathematica Scandinavica, Berkeley, CA, United States, v. 57, p. 44–50, 1985. DOI: 10.7146/math.scand.a-12105. Disponível em: https://journals.msp.org/mscand/article/view/1562. Acesso em: 25 jul. 2026.