A new method to construct integrable approximations to nearly integrable systems in Celestial Mechanics: application to the Sitnikov problem Johannes Hagel Original Article 20 March 2015 Pages: 101 - 116
Hill’s approximation in a restricted four-body problem Jaime Burgos-GarcíaMarian Gidea Original Article 24 March 2015 Pages: 117 - 141
DROMO formulation for planar motions: solution to the Tsien problem Hodei UrrutxuaDavid MoranteJesús Peláez Original Article 24 March 2015 Pages: 143 - 168
Implicit-Runge–Kutta-based methods for fast, precise, and scalable uncertainty propagation Jeffrey M. AristoffJoshua T. HorwoodAubrey B. Poore Original Article 27 March 2015 Pages: 169 - 182
The flattenings of the layers of rotating planets and satellites deformed by a tidal potential Hugo A. FolonierSylvio Ferraz-MelloKonstantin V. Kholshevnikov Original Article 07 May 2015 Pages: 183 - 198