EXTENDED ENERGY LOSS FINE STRUCTURE (EELFS) ABOVE THE CARBON K-EDGE IN CF4 STUDIED AT DIFFERENT MOMENTUM TRANSFERS P. LETARDI, R. CAMILLONI et G. STEFANI J. Phys. Colloques, 48 C9 (1987) C9-1125-C9-1128 DOI: 10.1051/jphyscol:19879205