Prem Pratap Vyas, Shashi Kant. Estimates on Initial Coefficients of Certain Subclasses of bi-univalent Functions Associated with the Class $\mathcal{P}_{m}(\beta)$. Int. J. Math. And Appl. [Internet]. 2017 Feb. 15 [cited 2024 May 19];5(1 - B):165-9. Available from: http://ijmaa.in/index.php/ijmaa/article/view/765