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Original Russian Text © A.K. Demenchuk, 2007, published in Differentsial’nye Uravneniya, 2007, Vol. 43, No. 10, pp. 1430–1432.
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Demenchuk, A.K. Irregular periodic solutions of linear differential systems with a nonzero mean value of small periodic perturbations. Diff Equat 43, 1468–1471 (2007). https://doi.org/10.1134/S0012266107100163
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DOI: https://doi.org/10.1134/S0012266107100163