This article is cited in 1 paper

Ordinary Differential Equations

Normal-Size Limit Cycles of Quadratic Systems with a Structurally Unstable Focus

L. A. Cherkas^a, I. L. Shevtsov<sup>b

a</sup> Belarussian State University of Computer Science and Radioelectronic Engineering
^b Belarusian State University, Minsk

UDC: 517.925.42

Received: 07.07.2003

 English version: Differential Equations, 2004, 40:8, 1139–1148

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