KHANI , R.; NAJAFZADEH , Sh.; EBADIAN , A.; NIKOUFAR , I. The $n$-valent convexity of Frasin integral operators. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 2, p. 278–282, 2021. DOI: 10.37863/umzh.v73i2.88. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/88. Acesso em: 27 apr. 2025.