DENIZ, E.; ORHAN, H.; SOKÓŁ, J. Classes of Analytic Functions Defined by a Differential Operator Related to Conic Domains. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 9, p. 1217–1231, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2060. Acesso em: 5 dec. 2025.