Comment on a recent fast beam measurement of the electron impact ionisation corss sections of He, C, O and N atoms Back to all publications Publication date 1 January 1979 Reference F.J. de Heer, Comment on a recent fast beam measurement of the electron impact ionisation corss sections of He, C, O and N atoms, J. Phys. B: At., Mol. Opt. Phys. 12, 429-432 (1979)