Modelling dynamics of samples exposed to free-electron-laser radiation with Boltzmann equations B. Ziaja, A. R.B. de Castro, E. Weckert and T. Möller Eur. Phys. J. D, 40 3 (2006) 465-480 Published online: 01 November 2006 DOI: 10.1140/epjd/e2006-00240-x