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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 36, No. 3, pp. 304–308, May–June, 1984.
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Konovalov, V.N. Continuation of functions of several variables with preservation of differential-difference properties. Ukr Math J 36, 273–277 (1984). https://doi.org/10.1007/BF01077460
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DOI: https://doi.org/10.1007/BF01077460