Ionization vs. neutralization in alkali-atom clusters C. Bréchignac, Ph. Cahuzac, F. Carlier, M. de Frutos, J. Leygnier, J. Ph. Roux et A. Sarfati J. Phys. II France, 2 4 (1992) 971-983 DOI: 10.1051/jp2:1992179