Photoionization of H atoms in few-cycle laser pulses X. M. Zhang, J. T. Zhang, R. X. Li, Q. H. Gong and Z. Z. Xu Eur. Phys. J. D, 37 3 (2006) 457-462 Published online: 13 December 2005 DOI: 10.1140/epjd/e2005-00325-0