1. On the Distance Function Between Two Keplerian Elliptic Orbits

   • Konstantin V. Kholshevnikov
   • Nikolay N. Vassiliev

   OriginalPaper Pages: 75 - 83

2. The determination of gravitational potential differences from satellite-to-satellite tracking

   • Christopher Jekeli

   OriginalPaper Pages: 85 - 101

3. Analytical and numerical results on the stability of a planetary precessional model

   • Gabriella Della Penna

   OriginalPaper Pages: 103 - 124

4. Analytical Solution of the Kozai Resonance and its Application

   • Hiroshi Kinoshita
   • Hiroshi Nakai

   OriginalPaper Pages: 125 - 147

5. Extrapolation of symplectic Integrators

   • S. Blanes
   • F. Casas
   • J. Ros

   OriginalPaper Pages: 149 - 161