The ionization of inert gas atoms by electron and proton impact at high energies Back to all publications Publication date 1 January 1965 Reference A.E. Kingston, B.L. Schram and F.J. de Heer, The ionization of inert gas atoms by electron and proton impact at high energies, Proc. Phys. Soc. 86, 1374-1376 (1965)