On the Limit Cycles of a Class of Planar Singular Perturbed Differential Equations

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</svg> of system (<a href="https://static.hindawi.com/articles/tswj/volume-2014/379897/figures/#EEq28">32</a>).</table>

The Scientific World Journal

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Figure 5

Figure 5: On the Limit Cycles of a Class of Planar Singular Perturbed Differential Equations 