Magesh, N., and J. Yamini. “Fekete-Szegö Inequalities Associated With Kth Root Transformation Based on Quasi-Subordination”. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, vol. 16, Jan. 2018, pp. 7-15, https://studmath.uken.krakow.pl/article/view/12968.