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Translated from Ukrainskii Matemticheskii Zhurnal, Vol. 40, No. 4, pp. 459–469, July–August, 1988.
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Norkin, S.B. A singular one-point problem for a nonlinear system with lag. Ukr Math J 40, 393–403 (1988). https://doi.org/10.1007/BF01057203
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DOI: https://doi.org/10.1007/BF01057203