Sakar, F. Müge, and Ertuğrul Doğan. “On Initial Chebyshev Polynomial Coefficient Problem for Certain Subclass of Bi-Univalent Functions”. Communications in Mathematics and Applications 11, no. 1 (March 31, 2020): 57–64. Accessed April 29, 2024. http://www.rgnpublications.com/journals/index.php/cma/article/view/1331.