The performance of phase-lag enhanced explicit Runge-Kutta Nyström pairs on N-body problems. - Philip W. Sharp; J. C. Castillo-Rogez; Kevin R. Grazier (J. Comput. Appl. Math., 2012)

High order explicit Runge-Kutta Nyström pairs. - Philip W. Sharp; Mohammad A. Qureshi; Kevin R. Grazier (Numer. Algorithms, 2013)