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JOURNALS // Differentsial'nye Uravneniya // Archive

Differ. Uravn., 1977 Volume 13, Number 9, Pages 1701–1708 (Mi de3183)

Integral Equations

The existence of periodic solutions for certain nonlinear problems

A. G. Ramm

Leningrad Institute of Precision Mechanics and Optics

UDC: 517.948.3

Received: 24.09.1974



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