MARZO, J.; SEIP, K. The Kadets $1/4$ theorem for polynomials. MATHEMATICA SCANDINAVICA, [S. l.], v. 104, n. 2, p. 311–318, 2009. DOI: 10.7146/math.scand.a-15100. Disponível em: https://www.mscand.dk/article/view/15100. Acesso em: 2 may. 2024.