Periodic Orbit Bifurcations in Planar Hysteretic Systems without Equilibria. - Marina Esteban; Enrique Ponce; Francisco Torres 001 (Int. J. Bifurc. Chaos, 2020)

The Extended 16th Hilbert Problem for Discontinuous Piecewise Linear Centers Separated by a Nonregular Line. - Marina Esteban; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2021)