References
P. G. Umarani, “Functions of bounded boundary rotation of complex order,” Math. Balkan.,3, No. 1, 34–43 (1989).
E. G. Goluzina, “On domains of values of systems of functional in certain classes of regular functions,” Mat. Zametki,37, No. 6, 803–810 (1985).
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Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 196, pp. 35–40, 1991.
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Goluzina, E.G. Extremal problems in the class of functions with bounded boundary rotation of complex order. J Math Sci 70, 2080–2084 (1994). https://doi.org/10.1007/BF02111325
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DOI: https://doi.org/10.1007/BF02111325