An application of the dust grain charging model to determination of secondary electron spectra I. Richterová, J. Pavlu, Z. Němeček and J. Šafránková Eur. Phys. J. D, 48 3 (2008) 375-381 Published online: 06 June 2008 DOI: 10.1140/epjd/e2008-00111-6