This article is cited in 3 papers

Ordinary Differential Equations

A Generalized Normal Form and Formal Equivalence of Two-Dimensional Systems with Quadratic Zero Approximation: I

V. V. Basov, A. V. Skitovich

Saint Petersburg State University

UDC: 517.925.4

Received: 26.11.2001

 English version: Differential Equations, 2003, 39:8, 1067–1081

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