On the Homoclinic Orbits of the Lü System. - Martha Alvarez-Ramírez; Johanna Denise García-Saldaña (Int. J. Bifurc. Chaos, 2017)

Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities. - Johanna Denise García-Saldaña; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2020)