Periodic solutions of singularly perturbed third-order systems, admitting parametrizatton
English version (Springer): Ukrainian Mathematical Journal 37 (1985), no. 5, pp 551-553.
Citation Example: Svishchuk M. Ya. Periodic solutions of singularly perturbed third-order systems, admitting parametrizatton // Ukr. Mat. Zh. - 1985. - 37, № 5. - pp. 673–675.
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