Murugusundaramoorthy, Gangadharan, et al. “Holder Inequalities for a Subclass of Univalent Functions Involving Dziok-Srivastava Operator”. Global Journal of Mathematical Analysis, vol. 1, no. 3, June 2013, pp. 74-82, https://doi.org/10.14419/gjma.v1i3.938.