Inequalities for angular derivatives at the boundary of the unit disc. Gulf Journal of Mathematics, [S. l.], v. 4, n. 3, 2016. DOI: 10.56947/gjom.v4i3.78. Disponível em: https://www.gjom.org/index.php/gjom/article/view/78. Acesso em: 6 nov. 2026.