1. On eccentricity functions for eccentric orbits

   • A. Szeto
   • K. Lambeck

   OriginalPaper Pages: 325 - 337

2. Perturbations of the orbit of Explorer 19 due to solar radiation

   • C. J. Brookes
   • F. C. E. Ryland

   OriginalPaper Pages: 339 - 352

3. The effects of diffuse solar radiation on the motion of an artificial satellite

   • C. J. Brookes
   • F. C. E. Ryland

   OriginalPaper Pages: 353 - 373

4. Long-term motion of resonant satellites with arbitrary eccentricity and inclination

   • Paul E. Nacozy
   • Roger E. Diehl

   OriginalPaper Pages: 375 - 397

5. Elimination des noeuds dans le probleme newtonien des quatre corps

   • Françoise Boigey

   OriginalPaper Pages: 399 - 414