1. A Tribute to William M. Kaula

   • Gerald Schubert

   OriginalPaper Pages: 239 - 240

2. A UT1-Like Quantity from Analysis of GPS Orbit Planes

   • Peter Kammeyer

   OriginalPaper Pages: 241 - 272

3. Periodic orbits of the Sitnikov problem via a Poincaré map

   • Montserrat Corbera
   • Jaume Llibre

   OriginalPaper Pages: 273 - 303

4. Simple derivation of Symplectic Integrators with First Order Correctors

   • Seppo Mikkola
   • Phil Palmer

   OriginalPaper Pages: 305 - 317

5. Instructions for Authors

   • J. Henrard

   Instructions for Authors Pages: 319 - 324

6. Volume contents

   Volume Contents Pages: 325 - 326