First-principles simulations for attosecond photoelectron spectroscopy based on time-dependent density functional theoryShunsuke A. Sato, Hannes Hübener, Angel Rubio and Umberto De GiovanniniEur. Phys. J. B, 91 6 (2018) 126DOI: https://doi.org/10.1140/epjb/e2018-90108-7