KINETIC ENERGY AND MASS ANALYSIS OF COVALENT GROUP IV CLUSTER IONS IN PULSED-LASER STIMULATED FIELD EVAPORATION T.T. TSONG et J. LIU J. Phys. Colloques, 49 C6 (1988) C6-75-C6-80 DOI: 10.1051/jphyscol:1988613