Prem Pratap Vyas, and Shashi Kant. 2017. “Estimates on Initial Coefficients of Certain Subclasses of Bi-Univalent Functions Associated With the Class $\mathcal{P}_{m}(\beta)$”. International Journal of Mathematics And Its Applications 5 (1 - B):165-69. http://ijmaa.in/index.php/ijmaa/article/view/765.