I. The Kepler problem II. The anisotropic Kepler problem III. The flow for non-negative energy levels IV. The flow on negative energy levels when $\mu> 9/8$ V. The flow on negative energy levels when $1 <\mu \le 9/8$ VI. Symmetric periodic orbits Appendix
Notes
"November 1984, volume 52, number 312 (second of three numbers)."
Bibliography
Includes bibliographical references (pages 113-115)