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- [1] On the number of limit cycles which appear by perturbation of Hamiltonian two-saddle cycles of planar vector fields BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, 2011, 42 (01): : 1 - 23
- [4] Limit cycles near a homoclinic loop connecting a tangent saddle in a perturbed quadratic Hamiltonian system COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION, 2023, 120