Differ. Uravn., 1990 Volume 26, Number 4, Pages 594–599
(Mi de7136)
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Ordinary Differential Equations
Frequency criteria for the existence of periodic solutions for systems with integral constraints
A. V. Megretski Leningrad State University
UDC:
517.925.42:517.935.4
Received: 13.02.1989
English version:
Differential Equations, 1990,
26:4,
431–435
Bibliographic databases:
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