Question of representing the solution of a matrix differential equation as a factorial series
English version (Springer): Ukrainian Mathematical Journal 39 (1987), no. 2, pp 194-198.
Citation Example: Tovbis A. I. Question of representing the solution of a matrix differential equation as a factorial series // Ukr. Mat. Zh. - 1987. - 39, № 2. - pp. 229–234.
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