1. Aarseth, S.J., 1974, Dynamical Evolution of Simulated Star Clusters I. Isolated Models, Astron. Astrophys., 35:237.
2. Aarseth, S.J., 1985, Direct Methods for JV-Body Simulations, in: Multiple Time Scales, J.U. Brackbill & B.I. Cohen, eds.. Academic Press, New York.
3. Arnold, V.I., 1978,Mathematical Methods of Classical Mechanics, Springer-Verlag, New York.
4. Binney, J. & Tremaine, S., 1987, Galactic Dynamics, Princeton University Press, Princeton.
5. Breeden, J.L., Packard, N.H. & Cohn, H., 1990, Chaos in Astrophysical Systems: Core Oscillations in Globular Clusters, preprint, CCSR-90–2 (Center for Complex Systems Research, Dept. of Physics, Beckman Institute, University of Illinois at Urbana-Champaign).