1. Ali, R. M., Lee, S. K., Ravichandran, V. and Supramaniam, S., The Fekete-Szego coefficient functional for transforms of analytic functions, Bull. Iranian Math. Soc. 35, 119-142, (2009).
2. Ali, R. M., Lee, S. K., Ravichandran, V. and Supramaniam, S., Coefficient estimates for bi-univalent Ma-Minda starlike and convex functions, Appl. Math. Lett. 25, 344-351, (2012).
3. Altınkaya, S. and Yalcin, S., Fekete-Szego inequalities for classes of bi-univalent functions defined by subordination, Adv. Math. Sci. J. 3, 63-71, (2014).
4. Altınkaya, S. and Yalcin, S., Initial coefficient bounds for a general class of bi-univalent functions, Int. J. Anal. 2014, Art. ID 867871, 1-4, (2014).
5. Altınkaya, S. and Yalcin, S., Coefficient estimates for two new subclasses of bi-univalent functions with respect to symmetric points, J. Funct. Spaces 2015, Art. ID 145242, 1-5, (2015).