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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 39, No. 2, pp. 229–234, March–April, 1987.
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Tovbis, A.I. Question of representing the solution of a matrix differential equation as a factorial series. Ukr Math J 39, 194–198 (1987). https://doi.org/10.1007/BF01057504
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DOI: https://doi.org/10.1007/BF01057504