Mehrok, B. S., Gagandeep Singh, and Deepak Gupta. “Coefficient Estimate for a Subclass of Close-to-Convex Functionswith Respect to Symmetric Points”. Tamkang Journal of Mathematics 42, no. 2 (June 1, 2011): 217–222. Accessed April 29, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/927.