K.G. Harrison, H. Tawara and F.J. de Heer, K-shell X-ray emission cross sections and ionization cross sections for light atoms and molecules by H+,H 2+ and He+ impact at 30-145 keV, Physica 66, (1973)
H.L.C. Meuzelaar, M.A. Posthumus, P.G. Kistemaker and J. Kistemaker, Curie point pyrolysis in direct combination with low voltage electron impact ionization mass spectrometry: new method for the analysis of nonvolatile organic materials, Anal. Chem. 45, 1546-1549 (1973)
M.J. van der Wiel and C.E. Brion, "Photoelectron" spectroscopy by electron inpact coincidence measurements of scattered and ejected electrons in CO, J. Electron Spectrosc. Relat. Phenom. 1, (1972)