2018
Том 70
№ 4

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Periodic solutions of systems of differential equations of first order with a parameter

Sobkovich R. I.

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English version (Springer): Ukrainian Mathematical Journal 33 (1981), no. 6, pp 627-632.

Citation Example: Sobkovich R. I. Periodic solutions of systems of differential equations of first order with a parameter // Ukr. Mat. Zh. - 1981. - 33, № 6. - pp. 828-834.

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