RABANAL, R.(2009). Center type performance of differentiable vector fields in the plane. Proceedings of the American Mathematical Society. Volumen: 137. (pp. 653 - 662). Recuperado de: http://www.ams.org/mathscinet/pdf/2448587.pdf
RABANAL, R.; Gutierrez, C.; Pires, B.(2006). Asymptotic stability at infinity for differentiable vector fields of the plane. Journal of Differential Equations. Volumen: 231. (pp. 165 - 181). Recuperado de: http://www.ams.org/mathscinet/pdf/2287882.pdf
RABANAL, R. y Gutierrez, C.(2006). Injectivity of differentiable maps R^2--- > R^2 at infinity.. Bulletin of the Brazilian Mathematical Society. Volumen: 37. (pp. 217 - 239). Recuperado de: http://www.ams.org/mathscinet/pdf/2266382.pdf
RABANAL, R.(2005). An eigenvalue condition for the injectivity and asymptotic stability at infinity. Qualitative Theory of Dynamical Systems. Volumen: 6. (pp. 233 - 250). Recuperado de: http://www.ams.org/mathscinet/pdf/2420859.pdf
RABANAL, R.; Gutierrez, C.; Fernandes, A.(2004). Global asymptotic stability for differentiable vector fields of R2. Journal of Differential Equations. Volumen: 206. (pp. 470 - 482). Recuperado de: http://www.ams.org/mathscinet/pdf/2096702.pdf
RABANAL, R.; Gutierrez, C.; Fernandes, A.(2004). On Local Diffeomorphisms of R^n that are Injective. Qualitative Theory of Dynamical Systems. Volumen: 4. (pp. 255 - 262). Recuperado de: http://www.ams.org/mathscinet/pdf/2129721.pdf
