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Translated from Ukrainskii Mathematicheskii Zhurnal, Vol. 25, No. 2, pp. 228–234, March–April, 1973.
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Markovskii, A.I. The region of values of an elliptic polynomial. Ukr Math J 25, 183–188 (1973). https://doi.org/10.1007/BF01096977
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DOI: https://doi.org/10.1007/BF01096977