1. General planetary theory in elliptic functions

   • V. A. Brumberg

   OriginalPaper Pages: 1 - 36

2. Frozen orbits for satellites close to an Earth-like planet

   • Shannon L. Coffey
   • André Deprit
   • Etienne Deprit

   OriginalPaper Pages: 37 - 72

3. Unified iterative methods in orbit determination

   • C. Dumoulin

   OriginalPaper Pages: 73 - 89

4. Book reviews

   • G. D. Quinlan
   • J. H. Lieske

   BookReview Pages: 91 - 95

5. Forthcoming papers

   Announcement Pages: 97 - 99