1. Efemeridi Malikh Planet na 1994 god (EMP 1994), Inst. Teoret. Astron., St. Peterburg, Russia (1993).
2. Ferraz-Mello, S. : 1988, “The high-eccentricity libration of the Hildas”. Astron. J. 06, 400–408.
3. Ferraz-Mello, S. : 1994, “The convergence domain of the Laplacian expansion of the disturbing function”. Celest. Mech. Dyn. Astron. 58.
4. Ferraz-Mello, S. and Klafke, J.C. : 1991, “A model for the study of very-high-eccentricity asteroidal motion. The 3: 1 resonance”. In Predictability, Stability and Chaos in N-Body Dynamical Systems (A.E.Roy, ed.), Plenum Press, New York, 177–184.
5. Franklin, F., Lecar, M. and Murison, M. : 1993, “Chaotic orbits and long-term stability : an example from asteroids of the Hilda group”. Astron. J. 105, 2336–2343.