Vibrational properties of polymer and quenched CsC60 phases J.-L. Sauvajol, E. Anglaret, K. Chesnel, M. Palpacuer, A. Girard, A. Moreac, J.-C. Ameline, Y. Delugeard and B. Hennion J. Chim. Phys., 95 6 (1998) 1441-1444 DOI: 10.1051/jcp:1998300