1. Froeschlé, C. and Petit, J.M.: 1990, Polynomial approximations of Poincare maps for Hamiltonian Systems, Astron. Astroohvs. (to appear).
2. Goldstein, H.:1980, Classical Mechanics, (2nd ed.), Addison-Wesley.
3. Hadjidemetriou, J.D.:1986, A hyperbolic twist mapping model for the study of resonant asteroid motion near the 3:1 resonance, J. Appl. Math. Phvs., 37, 776–796.
4. Hadjidemetriou, J.D., 1988: Algebraic mappings near a resonance with an application to asteroid motion in Long term behaviour of Natural and Artificial N-body Systems, A.E. Roy (ed), 257–276, Kluwer Publ.
5. Hadjidemetriou, J.D.:1990, Mapping models for the motion of asteroids near a resonance, proceedings of the Vars Meeting, C. Froeschle (ed).