Ultraviolet photoelectron spectroscopy of Si4− to Si−1000 M. Astruc Hoffmann, G. Wrigge, B.v. Issendorff, J. Müller, G. Ganteför and H. Haberland Eur. Phys. J. D, 16 1-3 (2001) 9-11 Published online: 15 September 2001 DOI: 10.1007/s100530170048