1. G. N. Duboshin

   • V. A. Brumberg
   • E. P. Aksenov

   In Memoriam Pages: 114 - 115

2. On the 3/1 planar and circular resonant problem

   • Tadashi Yokoyama
   • Massae Sato

   OriginalPaper Pages: 117 - 132

3. Unsolved problems of celestial mechanics

   • V. A. Brumberg
   • J. Kovalevsky

   OriginalPaper Pages: 133 - 140

4. Unsolved Problems of Celestial Mechanics — The Solar System

   • P. K. Seidelmann

   OriginalPaper Pages: 141 - 146

5. Study of the terms of coupling between rotational and translational motions

   • M. C. Zanardi

   OriginalPaper Pages: 147 - 158

6. Existence of libration points in the generalised photogravitational restricted problem of three bodies

   • Vijay Kumar
   • R. K. Choudhry

   OriginalPaper Pages: 159 - 171

7. A theory of integration for the extended Delaunay method

   • Wagner Sessin

   OriginalPaper Pages: 173 - 180

8. A new method of initial orbit determination

   • B. G. Morton
   • L. G. Taff

   OriginalPaper Pages: 181 - 190

9. Gravity in one dimension: Stability of a three particle system

   • A. Matulich
   • B. N. Miller

   OriginalPaper Pages: 191 - 198

10. An improved algorithm due to laguerre for the solution of Kepler's equation

    • Bruce A. Conway

    OriginalPaper Pages: 199 - 211

11. K-theory

    Announcing a New Journal Pages: 212 - 212