Determination of transition dipole moments from time–resolved photoelectron spectroscopy T. Lohmüller, M. Erdmann, O. Rubner and V. Engel Eur. Phys. J. D, 25 1 (2003) 95-99 Published online: 29 April 2003 DOI: 10.1140/epjd/e2003-00094-8