On the Fractional q-Differintegral Operator for Subclasses of Bi-univalent Functions Subordinate to q-Ultraspherical Polynomials. Eur. J. Pure Appl. Math. [Internet]. 2025 Aug. 1 [cited 2025 Dec. 5];18(3):6586. Available from: https://www.ejpam.com/index.php/ejpam/article/view/6586