Frasin, Basem Aref, and Gangadharan Murugusundaramoorthy. “A Subordination Results for a Class of Analytic Functions Defined by Q-Differential Operator”. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica 19 (January 14, 2020): 53–64. Accessed December 5, 2023. https://studmath.up.krakow.pl/article/view/7328.