HÖRUP, Christian. An Asymptotic Formula for the Derivatives of Orthogonal Polynomials of the Unit Circle. MATHEMATICA SCANDINAVICA, [S. l.], v. 20, p. 32–40, 1967. DOI: 10.7146/math.scand.a-10816. Disponível em: https://tidsskrift.dk/math/article/view/10816. Acesso em: 13 aug. 2026.