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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 (Mar. 2023), 198 - 206. DOI:https://doi.org/10.37863/umzh.v75i2.6602.