Theoretical study of the charge transfer in supported transition metal microclusters E. Martínez, R. Robles, A. Vega, R. C. Longo and L. J. Gallego Eur. Phys. J. D, 34 1-3 (2005) 51-54 Published online: 13 July 2005 DOI: 10.1140/epjd/e2005-00117-6