1. A note on a conjecture of Poincaré

   • Gerard Gómez
   • Jaume Llibre

   OriginalPaper Pages: 335 - 343

2. Properties of the moment of inertia in the problem of three bodies

   • K. Zare

   OriginalPaper Pages: 345 - 354

3. The 4∶1 resonance

   • G. Contopoulos

   OriginalPaper Pages: 355 - 366

4. Reformulation of the Brouwer geopotential theory for improved computational efficiency

   • Felix R. Hoots

   OriginalPaper Pages: 367 - 375

5. The perturbations of the orbital elements of Trojan asteriods

   • Bálint Érdi

   OriginalPaper Pages: 377 - 390

6. Orbit calculations near by the equilibrium points by a discrete mechanics method

   • Jerzy Albrycht
   • Andrzej Marciniak

   OriginalPaper Pages: 391 - 405

7. Gylden-Meščerskii problem

   • L. M. Berković

   OriginalPaper Pages: 407 - 429