Electron-impact ionization of atomic hydrogen: dynamical variational treatment P. Defrance, T. Kereselidze, J. Lecointre and Z.S. Machavariani Eur. Phys. J. D, 64 2-3 (2011) 303-310 Published online: 11 October 2011 DOI: 10.1140/epjd/e2011-20285-x