Raza, M., Thomas, D.K. and Riaz, A. 2023. Coefficient estimates for starlike and convex functions related to sigmoid functions. Ukrains’kyi Matematychnyi Zhurnal. 75, 5 (May 2023), 683 - 697. DOI:https://doi.org/10.37863/umzh.v75i5.7093.