Iterative treatment of the Coulomb potential in laser–atom interactionsB. Piraux, A. Galstyan, Yu. V. Popov, F. Mota-Furtado and P. F. O’MahonyEur. Phys. J. D, 75 7 (2021) 196DOI: https://doi.org/10.1140/epjd/s10053-021-00174-9