J. Llibre.
Open problems on the algebraic limit cycles of planar polynomial vector fields.
Bul. Acad. Ştiinţe Repub. Mold. Mat., 56(1), 19-26. 2008.
Abstract

J. Llibre.
On the limit cycles of the Liénard differential systems.
Bol. Soc. Esp. Mat. Apl. SEMA, 42, 37-48. 2008.
Abstract

J. Llibre, P. R. Silva, M. A. Teixeira.
Sliding vector fields via slow-fast systems.
Bull. Belg. Math. Soc. Simon Stevin, 15(5), 851-869. 2008. [DOI]
Abstract

J. Llibre, A. Mahdi.
Errata to: On the number of singular points of the radial projection of polynomial gradient vector fields of $R^3$ on the sphere $S^2$ [Comm. Appl. Nonlinear Anal. 14(4) (2007), 77-84].
Comm. Appl. Nonlinear Anal., 15(1), 95-102. 2008.

J. Llibre, J. C. Medrado, P. R. Silva.
Limit cycles for singular perturbation problems via inverse integrating factor.
Bol. Soc. Parana. Mat., 26(1-2), 41-52. 2008. [DOI]
Abstract

J. Llibre, L. F. Mello.
New central configurations for the planar 5-body problem.
Celestial Mech. Dynam. Astronom., 100, 141-149. 2008. [DOI]
Abstract

J. Llibre, M. Messias, P. R. Silva.
On the global dynamics of the Rabinovich system.
J. Phys. A, 41(27), 1-21. 2008. [DOI]
Abstract

J. Llibre, R. Ortega.
On the families of periodic orbits of the Sitnikov problem.
SIAM J. Appl. Dyn. Syst., 7(2), 561-576. 2008. [DOI]
Abstract

J. Llibre, E. Ponce, F. Torres.
On the existence and uniqueness of limit cycles in Liénard differential equations allowing discontinuities.
Nonlinearity, 21(9), 2121-2142. 2008. [DOI]
Abstract

J. Llibre, A. Tarta.
Periodic orbits for some systems of delay differential equations.
Acta Math. Sin. (Engl. Ser.), 24(2), 267-274. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
Centers for a 6-parameter family of polynomial vector fields of arbitrary degree.
Bull. Sci. Math., 132, 40-53. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
Integrability of a SIS model.
J. Math. Anal. Appl., 344(1), 574-578. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
Analytic integrability of a Chua system.
J. Math. Phys., 49(10), 102701, 9 pp.. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
On the global analytic integrability of the Belousov-Zhabotinskii system.
Adv. Nonlinear Stud., 8(4), 871-882. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
Global analytic integrability of the Rabinovich system.
J. Geom. Phys., 58, 1762-1771. 2008. [DOI]
Abstract

J. Llibre, C. Valls.
Darboux integrability and algebraic invariant surfaces for the Rikitake system.
J. Math. Phys., 49(3), 032702, 17 pp.. 2008. [DOI]
Abstract

J. Llibre, H. Wu.
Hopf bifurcation for degenerate singular points of multiplicity 2n-1 in dimension 3.
Bull. Sci. Math., 132, 218-231. 2008. [DOI]
Abstract

J. Llibre, J. Yu, X. Zhang.
Limit cycles coming from the perturbation of 2-dimensional centers of vector fields in $ R^3$.
Dynam. Systems Appl., 17, 625-636. 2008.
Abstract

J. Llibre, X. Zhang.
On the algebraic limit cycles of Liénard systems.
Nonlinearity, 21(9), 2011-2022. 2008. [DOI]
Abstract

A. Mahdi.
Integrable polynomial differential systems and their perturbations.
PhD thesis, Universitat Autònoma de Barcelona, October, 2008.
Abstract