The valence band of free K clusters studied by photoelectron and Auger spectroscopiesA. Rosso, G. Öhrwall, S. E. Canton, S. Legendre, I. L. Bradeanu, S. Svensson, O. Björneholm and M. TchaplyguineEur. Phys. J. D, 50 2 (2008) 165-169DOI: https://doi.org/10.1140/epjd/e2008-00210-4