Murugusundaramoorthy, G., and T. Bulboacă. “Estimate for Initial MacLaurin Coefficients of Certain Subclasses of Bi-Univalent Functions of Complex Order Associated With the Hohlov Operator”. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, vol. 17, Apr. 2018, pp. 27-36, https://studmath.uken.krakow.pl/article/view/12957.