Study of Singularities in Nonsmooth Dynamical Systems via Singular Perturbation. - Jaume Llibre; Paulo Ricardo da Silva; Marco Antonio Teixeira (SIAM J. Appl. Dyn. Syst., 2009)

Global Dynamics of the Lorenz System with Invariant Algebraic Surfaces. - Jaume Llibre; Marcelo Messias; Paulo Ricardo da Silva (Int. J. Bifurc. Chaos, 2010)

Global Dynamics in the Poincaré ball of the Chen System having Invariant Algebraic Surfaces. - Jaume Llibre; Marcelo Messias; Paulo Ricardo da Silva (Int. J. Bifurc. Chaos, 2012)

Asymptotic Expansion of the Heteroclinic Bifurcation for the Planar Normal Form of the 1: 2 Resonance. - Luci A. F. Roberto; Paulo Ricardo da Silva; Joan Torregrosa (Int. J. Bifurc. Chaos, 2016)

Bifurcations of the Riccati Quadratic Polynomial Differential Systems. - Jaume Llibre; Bruno D. Lopes; Paulo Ricardo da Silva (Int. J. Bifurc. Chaos, 2021)

On the Number of Limit Cycles for Piecewise Polynomial Holomorphic Systems. - Armengol Gasull; Gabriel Rondón; Paulo Ricardo da Silva (SIAM J. Appl. Dyn. Syst., 2024)