Dipole term and first derivative at K=0 of the generalized oscillator strength of He by keV electron impact Back to all publications Publication date 1 January 1975 Reference C. Backx, R.R. Tol, G.R. Wight and M.J. van der Wiel, Dipole term and first derivative at K=0 of the generalized oscillator strength of He by keV electron impact, J. Phys. B: At., Mol. Opt. Phys. 8, 2050-2057 (1975)