Novikau, I., Biancalani, A., Bottino, A., Di Siena, A., Lauber, P., Poli, E., et al. (2021). Implementation of energy transfer technique in ORB5 to study collisionless wave-particle interactions in phase-space. Computer Physics Communications, 262: 107032. doi:10.1016/j.cpc.2019.107032.