OLADIPO, Abiodun Tinuoye. “Coefficient Inequality for Subclass of Analytic Univalent Functions Related to Simple Logistic Activation Functions”. Studia Universitatis Babeș-Bolyai Mathematica, vol. 61, no. 1, Mar. 2016, pp. 45-52, https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5509.