SEOUDY, T. M. Some subclasses of univalent functions associated with $k$-Ruscheweyh derivative operator. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 74, n. 1, p. 122–136, 2022. DOI: 10.37863/umzh.v74i1.2337. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2337. Acesso em: 5 dec. 2025.