Uniqueness of Limit Cycles for a Class of Cubic
Systems with Two Invariant Straight Lines

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Discrete Dynamics in Nature and Society

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Figure 4

Figure 4: Uniqueness of Limit Cycles for a Class of Cubic
Systems with Two Invariant Straight Lines 

Discrete Dynamics in Nature and Society

Uniqueness of Limit Cycles for a Class of Cubic Systems with Two Invariant Straight Lines

Figure 4