Electron-impact ionization of atomic hydrogen: dynamical variational treatmentP. Defrance, T. Kereselidze, J. Lecointre and Z.S. MachavarianiEur. Phys. J. D, 64 2-3 (2011) 303-310DOI: https://doi.org/10.1140/epjd/e2011-20285-x