Méndez-Maldonado, G., M. González-Melchor, J. Alej, re., and G. Chapela. “On the Centre of Mass Velocity in Molecular Dynamics Simulations”. Revista Mexicana De Física, vol. 58, no. 1, Jan. 2012, pp. 55-60, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3884.