Galactic dynamics. - George Contopoulos; Christos Efthymiopoulos (Scholarpedia, 2011)

Quantum Vortices and Trajectories in Particle Diffraction. - N. Delis; Christos Efthymiopoulos; George Contopoulos (Int. J. Bifurc. Chaos, 2012)

Hamiltonian formulation of the spin-orbit model with time-varying non-conservative forces. - Ioannis Gkolias; Christos Efthymiopoulos; Giuseppe Pucacco; Alessandra Celletti (Commun. Nonlinear Sci. Numer. Simul., 2017)

A parallel Self Mesh-Adaptive N-body method based on approximate inverses. - Panagiotis E. Kyziropoulos; C. K. Filelis-Papadopoulos; George A. Gravvanis; Christos Efthymiopoulos (J. Supercomput., 2017)

Toward the design of a novel hybrid parallel N-body method in scope of modern cloud architectures. - Panagiotis E. Kyziropoulos; C. K. Filelis-Papadopoulos; George A. Gravvanis; Christos Efthymiopoulos (J. Supercomput., 2018)

Accurate modelling of the low-order secondary resonances in the spin-orbit problem. - Ioannis Gkolias; Christos Efthymiopoulos; Alessandra Celletti; Giuseppe Pucacco (Commun. Nonlinear Sci. Numer. Simul., 2019)

Semi-analytic Computations of the Speed of Arnold Diffusion Along Single Resonances in A Priori Stable Hamiltonian Systems. - Massimiliano Guzzo; Christos Efthymiopoulos; Rocío I. Paez (J. Nonlinear Sci., 2020)

Semi-Analytical Estimates for the Orbital Stability of Earth's Satellites. - Irene De Blasi; Alessandra Celletti; Christos Efthymiopoulos (J. Nonlinear Sci., 2021)