Existence of quasiper iodic solutions of systems of second order differential equations
English version (Springer): Ukrainian Mathematical Journal 24 (1972), no. 5, pp 545-550.
Citation Example: Yatsyuk V. T. Existence of quasiper iodic solutions of systems of second order differential equations // Ukr. Mat. Zh. - 1972. - 24, № 5. - pp. 675–682.
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