| Reference |
J.H.M. Bonnie, P.J. Eenshuistra and H.J. Hopman: Exploration of a hydrogen discharge using resonant multiphoton ionization In: Production and Neutralization of Negative Ions and Beams : Fourth International Symposium, Brookhaven, NY 1986 /ed. J.G. Alessi, American Institute of Physics, 1987. - pp. 133-144 |
