A. Cima, J. Llibre.
A global theorem about the indices of the singularities of a polynomial field on the plane.
In IX CEDYA (Valladolid, 1986), 259-261. Univ. Valladolid, Valladolid, 1987.
Abstract

B. Coll.
Qualitative study of some classes of vector fields on the plane.
PhD thesis, Universitat Autònoma de Barcelona, 1987.
Abstract

B. Coll, A. Gasull, J. Llibre.
Some theorems on the existence, uniqueness, and nonexistence of limit cycles for quadratic systems.
J. Differential Equations, 67(3), 372-399. 1987. [DOI]
Abstract

B. Coll, J. Llibre.
Singularities on the real plane of an analytic system of order two.
In IX CEDYA (Valladolid, 1986), 135-139. Univ. Valladolid, Valladolid, 1987. (In Spanish)
Abstract

A. Gasull, J. Llibre, J. Sotomayor.
Further considerations on the number of limit cycles of vector fields of the form $X(v)=Av+f(v)Bv$.
J. Differential Equations, 68(1), 36-40. 1987. [DOI]
Abstract

A. Gasull, J. Llibre, J. Sotomayor.
Limit cycles of vector fields of the form $X(v)=Av+f(v)Bv$.
J. Differential Equations, 67(1), 90-110. 1987. [DOI]
Abstract

G. Gómez, J. Llibre, R. Martínez, J. Rodríguez-Canabal, C. Simó.
On the optimal station keeping control on Halo orbits.
Acta Astronaut., 15, 391-397. 1987.
Abstract

J. Llibre.
Structure of the set of periods for the Lorenz map.
In Dynamical systems and bifurcation theory (Rio de Janeiro, 1985), 277-293. Longman Sci. Tech., Harlow, 1987.
Abstract

J. Llibre, C. Piñol.
A gravitational approach to the Titius-Bode law.
Astron. J., 93, 1272-1279. 1987.
Abstract

P. Mumbrú.
Periodic structure and topological entropy of the bimodal maps.
PhD thesis, Universitat Autònoma de Barcelona, 1987. (In Catalan)
Abstract

C. Piñol.
Qualitative studies of some restricted 3 and 4 body problems.
PhD thesis, Universitat Autònoma de Barcelona, Bellaterra, September, 1987. (In Catalan)
Abstract

C. Piñol, J. Llibre.
About the existence of periodic orbits in a restricted 4-body problem. aplication to the Titius-Bode law.
In IX CEDYA (Valladolid, 1986), 325-329. Univ. Valladolid, Valladolid, 1987. (In Spanish)
Abstract

Ll. Alsedà, A. Falcó.
El diagrama de bifurcacion para una familia de endomorfismos del circulo relacionada con la ecuacion de Van der Pol.
In Actas IX Cedya, 39-43. 1986.
Abstract

Ll. Alsedà, J. Llibre.
Kneading theory of Lorentz maps.
In IX CEDYA (Valladolid, 1986), 45-48. 1986.
Abstract

A. Gasull.
Qualitative study of some classes of differential equations on the plane.
PhD thesis, Universitat Autònoma de Barcelona, 1986.
Abstract

A. Gasull.
Control on the number of limit cycles of a differential equation trough the study of the bifurcations at its unique critical point.
Presented at IX CEDYA, Valladolid, 1986. (In Spanish)
AbstractFull PDF

A. Gasull, S. Li-Ren, J. Llibre.
Chordal quadratic systems.
Rocky Mountain J. Math., 16(4), 751-782. 1986. [DOI]
Abstract

G. Gómez, J. Llibre, R. Martínez, C. Simó.
Station keeping of a quasi-periodic halo orbit using invariant manifolds.
In Proceedings of the Second International Symposiun on Spacecraft Flight Dynamics, Darmstadt, FR Germany., 65-70. Darmstadt, 1986.
Abstract

Ll. Alsedà, J. Llibre.
Orbites périodiques minimales des applications continues du cercle dans lui-même ayant un point fixe.
C. R. Acad. Sci. Paris Ser. I Math., 301(11), 601-604. 1985.
Abstract

Ll. Alsedà, J. Llibre.
A note on the set of periods for continuous maps of the circle which have degree one.
Proc. Amer. Math. Soc., 93(1), 133-138. 1985. [DOI]
Abstract