This article is cited in 3 papers

Ordinary Differential Equations

On the Poincaré–Denjoy theory of multidimensional differential equations

A. I. Perov^a, I. Yu. Ègle<sup>b

a</sup> Voronezh State University
^b Riga Technical University

UDC: 517.938

Received: 23.09.1970

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