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JOURNALS // Doklady Akademii Nauk // Archive

Dokl. Akad. Nauk SSSR, 1957 Volume 113, Number 1, Pages 9–11 (Mi dan21666)

MATHEMATICS

On the problem of periodical solutions of non-linear systems with a small parameter

I. Berstein

Institute of Mathematics "Simion Stoilow" of the Romanian Academy

Presented: I. G. Petrovskii
Received: 07.12.1955



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