AHERN, P. R.; CLARK, D. N. Radial nth Derivatives of Blaschke Products. MATHEMATICA SCANDINAVICA, [S. l.], v. 28, p. 189–201, 1971. DOI: 10.7146/math.scand.a-11015. Disponível em: https://www.mscand.dk/article/view/11015. Acesso em: 28 mar. 2024.