Global stability of saddle-node bifurcation of a periodic orbit for vector fields S. Sergio Plaza — 1994 Annales de la Faculté des sciences de Toulouse : Mathématiques
Bifurcation and stability of families of hyperbolic vector fields in dimension three Sergio Plaza; Jaime Vera — 1997 Annales de l'I.H.P. Analyse non linéaire
C 0 -continuity of the Fröbenius-Perron semigroup. Navas, Andrés; Plaza, Sergio — 2002 International Journal of Mathematics and Mathematical Sciences