1. The Global Phase Space for the 2- and 3-Dimensional Kepler Problems

   • Márcia P. Dantas
   • Jaume Llibre

   OriginalPaper 17 November 2009 Article: 45

2. Planar Quadratic Vector Fields with Two or Three Finite Singularities and a Finite Saddle Connection on a Straight Line

   • P. C. Carrião
   • M. E. S. Gomes
   • A. A. G. Ruas

   OriginalPaper 03 November 2009 Article: 25

3. Energy Levels of Periodic Solutions of the Circular 2 + 2 Sitnikov Problem

   • H. Jiménez-Pérez
   • E. A. Lacomba

   OriginalPaper 17 November 2009 Article: 1