HÖRUP, Christian. An Asymptotic Formula for the Derivatives of Orthogonal Polynomials of the Unit Circle. Mathematica Scandinavica, Berkeley, CA, United States, v. 20, p. 32–40, 1967. DOI: 10.7146/math.scand.a-10816. Disponível em: https://journals.msp.org/mscand/article/view/2510. Acesso em: 25 jul. 2026.