1. Closest Approach in Universal Variables

   • M. A. Sharaf
   • Amr A. Sharaf

   OriginalPaper Pages: 331 - 346

2. The Inverse Problem of Dynamics for Systems with Non-Stationary Lagrangian

   • T. B. Omarov
   • G. T. Omarova

   OriginalPaper Pages: 347 - 355

3. The Convergence of Newton–Raphson Iteration with Kepler's Equation

   • E. D. Charles
   • J. B. Tatum

   OriginalPaper Pages: 357 - 372

4. Effects On the Nutation of the Non-Zonal Harmonics of Third Degree

   • Marta Folgueira
   • Jean Souchay
   • Hiroshi Kinoshita

   OriginalPaper Pages: 373 - 402