STENBERG, W. On an Inequality for Laurent Polynomials. MATHEMATICA SCANDINAVICA, [S. l.], v. 15, p. 79–82, 1964. DOI: 10.7146/math.scand.a-10730. Disponível em: https://www.mscand.dk/article/view/10730. Acesso em: 5 may. 2024.