1. Effect of perturbations in Coriolis and centrifugal forces on the stability of libration points in the restricted problem

   • K. B. Bhatnagar
   • P. P. Hallan

   OriginalPaper Pages: 105 - 112

2. The solution of Jacobi's virial equation for celestial bodies

   • V. I. Ferronsky
   • S. A. Denisik
   • S. V. Ferronsky

   OriginalPaper Pages: 113 - 140

3. The three-dimensional motion of Trojan asteroids

   • Bálint Érdi

   OriginalPaper Pages: 141 - 161

4. Comment on the paper ‘some investigations into the atmospheric drag problem’ by A. H. Jupp

   • D. G. King-Hele

   BriefCommunication Pages: 163 - 164

5. Relative equilibrium solutions in the four body problem

   • Carles Simó

   OriginalPaper Pages: 165 - 184

6. A case of commensurability induced by oblateness

   • Ram Krishan Sharma
   • P. V. Subba Rao

   OriginalPaper Pages: 185 - 194

7. Higher order resonances in dynamical systems

   • G. Contopoulos

   OriginalPaper Pages: 195 - 204