| Reference |
J. van Eck, F.J. de Heer and J. Kistemaker: Excitation of helium and polarization of the resulting light induced by collisions with protons and hydrogen atoms (5-35 keV) In: Atomic Collision Processes : the Proceedings of the IIIrd International Conference on the Physics of Electronic and Atomic Collisions, London, University College London, 22nd-26th July 1963 /ed. M.R.C. McDowell, North-Holland, 1964. - pp. 624-634 |
