Literature cited
A. S. Nosenko, “Properties of mappings of the unit circle by Caratheodory C-functions,” Ukr. Matem. Zh.,23, No. 6 (1971).
V. Singh and R. M. Goel, “On the radii of convexity and starlikeness of some classes of functions,” J. Math. Soc. Japan,23, No. 2, 323–339 (1971).
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 25, No. 6, pp. 827–830, November–December, 1973.
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Nosenko, A.S. The domains of values of two functionals defined for Carathéodory C-functions. Ukr Math J 25, 689–691 (1973). https://doi.org/10.1007/BF01090806
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DOI: https://doi.org/10.1007/BF01090806