Seoudy TM. Some subclasses of univalent functions associated with $k$-Ruscheweyh derivative operator. Ukr. Mat. Zhurn. [Internet]. 2022 Jan. 24 [cited 2025 Dec. 5];74(1):122-36. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2337