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JOURNALS // Differentsial'nye Uravneniya // Archive

Differ. Uravn., 1969 Volume 5, Number 5, Pages 814–823 (Mi de710)

The existence of a family of periodic solutions of a system of two second order differential equations

I. A. Pasynkova

Leningrad State University

UDC: 517.911

Received: 27.02.1968



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