Collective excitations in the electron energy loss spectra of C60 P. Bolognesi, L. Avaldi, A. Ruocco, A. Verkhovtsev, A.V. Korol and A.V. Solov’yov Eur. Phys. J. D, 66 10 (2012) 254 Published online: 04 October 2012 DOI: 10.1140/epjd/e2012-30178-1