Fekete–Szeg˝o Inequalities for New Subclasses of Bi-Univalent Functions Defined by S˘al˘agean q-Differential Operator. Eur. J. Pure Appl. Math. [Internet]. 2025 May 1 [cited 2025 Dec. 5];18(2):6115. Available from: https://www.ejpam.com/index.php/ejpam/article/view/6115