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JOURNALS // Differentsial'nye Uravneniya // Archive

Differ. Uravn., 1967 Volume 3, Number 6, Pages 898–904 (Mi de173)

Differential equations $yy'=Q_4(x,y)$, having an ellipse as limit cycle

M. V. Dolov

Gor'kii State University

UDC: 517.917

Received: 29.12.1965



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