The paper “The high-order Euler method and the spin-orbit model: a fast algorithm for solving differential equations with small, smooth nonlinearity“, co-authored by Michele Bartuccelli, Jonathan Deane and Guido Gentile (Uni Roma Tre, and Visiting Professor at Surrey), has been accepted for publication in the journal Celestial Mechanics.  The webpage for the journal is here. Final form preprint of the paper can be found here