ÖRNEK, B. N. Estimates for analytic functions concerned with Hankel determinant. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 9, p. 1205–1216, 2021. DOI: 10.37863/umzh.v73i9.907. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/907. Acesso em: 7 apr. 2025.