1. Abu Muhanna Y., Li L., Ponnusamy S.: Extremal problems on the class of convex functions of order $${-1/2}$$ - 1 / 2 . Arch. Math. (Basel) 103, 461–471 (2014)
2. S. Agrawal and S. K. Sahoo, On coefficient functionals associated with the Zalcman conjecture, preprint.
3. Bharanedhar S. V., Ponnusamy S.: Uniform close-to-convexity radius of sections of functions in the close-to-convex family. J. Ramanujan Math. Soc. 29, 243–251 (2014)
4. Brown J. E., Tsao A.: On the Zalcman conjecture for starlikeness and typically real functions. Math. Z. 191, 467–474 (1986)
5. Bshouty D., Lyzzaik A.: Close-to-convexity criteria for planar harmonic mappings. Complex Anal. Oper. Theory, 5, 767–774 (2011)