1. Elliptical multi-sun-synchronous orbits for Mars exploration

   • Christian Circi
   • Emiliano Ortore
   • Carlo Ulivieri

   Original Article 25 August 2012 Pages: 215 - 227

2. Integrable approximation of J ₂-perturbed relative orbits

   • M. Lara
   • P. Gurfil

   Original Article 08 August 2012 Pages: 229 - 254

3. Asymptotic stability of synchronous orbits for a gravitating viscoelastic sphere

   • Dario Bambusi
   • Emanuele Haus

   Original Article 02 August 2012 Pages: 255 - 277

4. Accurate analytical approximation of asteroid deflection with constant tangential thrust

   • Claudio Bombardelli
   • Giulio Baù

   Original Article 01 September 2012 Pages: 279 - 295

5. Explicit adaptive symplectic integrators for solving Hamiltonian systems

   • Sergio Blanes
   • Arieh Iserles

   Original Article 25 August 2012 Pages: 297 - 317