Alina Alb Lupaş. “On Special Strong Differential Superordinations Using Sălăgean and Ruscheweyh Operators”. Journal of Advances in Applied & Computational Mathematics 1, no. 1 (October 10, 2014): 28–34. Accessed May 21, 2022. https://www.avantipublishers.com/index.php/jaacm/article/view/58.