PatilAB, ShabaTG. Sharp initial coefficient bounds and the Fekete–Szegö problem for some certain subclasses of analytic and bi-univalent functions. Ukr. Mat. Zhurn. [Internet]. 2023Mar.2 [cited 2024Jul.27];75(2):198 -206. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/6602