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MATHEMATICS
The existence of periodic solutions of certain non-linear systems
V. A. Pliss Leningrad State University
Citation:
V. A. Pliss, “The existence of periodic solutions of certain non-linear systems”, Dokl. Akad. Nauk SSSR, 137:5 (1961), 1060–1062
Linking options:
https://www.mathnet.ru/eng/dan24860 https://www.mathnet.ru/eng/dan/v137/i5/p1060
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