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On Shi’s counterexample for Hilbert’s 16th problem. (Über Shi’s Gegenbeispiel zum 16. Hilbertproblem.) (German) Zbl 0508.34022
Jahrb. Überblicke Mathematik 1983, 9-24 (1983).
MSC:
34C05 Topological structure of integral curves, singular points, limit cycles of ordinary differential equations
34-02 Research exposition (monographs, survey articles) pertaining to ordinary differential equations