SOKOL, J.; BANSAL, D. Coefficients bounds in some subclass of analytic functions. Tamkang Journal of Mathematics, [S. l.], v. 43, n. 4, p. 621-630, 2012. DOI: 10.5556/j.tkjm.43.2012.1020. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1020. Acesso em: 25 jul. 2021.