TESTS OF CRITERIA FOR THE EXISTENCE OF COLLECTIVE EXCITATIONS IN LIQUID METALS O. Söderström, J. R.D. Copley, J.-B. Suck et B. DornerJ. Phys. Colloques, 41 C8 (1980) C8-230-C8-233DOI: https://doi.org/10.1051/jphyscol:1980859
