Patil, A. B. and Shaba, T. G. (2023) “Sharp initial coefficient bounds and the Fekete–Szegö problem for some certain subclasses of analytic and bi-univalent functions”, Ukrains’kyi Matematychnyi Zhurnal, 75(2), pp. 198 - 206. doi: 10.37863/umzh.v75i2.6602.