[1] J. Sokó?, “A Certain Class of Starlike Functions,” Computers and Mathematics with Applications, Vol. 62, No. 2, 2011, pp. 611-619. doi:10.1016/j.camwa.2011.05.041
[2] M. S. Rovertson, “Certain Classes of Starlike Functions,” Michigan Mathematical Journal, Vol. 76, No. 1, 1954, pp. 755-758.
[3] W. Janowski, “Extremal Problems for a Family of Functions with Positive Real Part and Some Related Families,” Annales Polonici Mathematici, Vol. 23, 1970, pp. 159-177.
[4] W. Janowski, “Some Extremal Problems for Certain Families of Analytic Functions,” Annales Polonici Mathematici, Vol. 28, 1973, pp. 297-326.
[5] R. Jurasiska and J. Stankiewics, “Coefficients in Some Classes Defined by Subordination to Multivalent Majorants,” Annales Polonici Mathematici, Vol. 80, 2003, pp. 163-170.
[6] S. S. Miller and P. T. Mocanu, “Differential Subordinations, Theory and Applications,” Series of Monographs and Textbooks in Pure and Applied Mathematics, Vol. 225, Marcel Dekker Inc., New York, 2000.
[7] P. Duren, “Univalent functions, A Series of Comprehensive Studies in Mathematics,” Vol. 259, Springer-Verlag, New-York, 1983.