Localized fast relaxation in poly(methyl methacrylate) glass A. Mermet, E. Duval, N. V. Surovtsev, J. F. Jal, A. J. Dianoux and A. F. Yee Europhys. Lett., 38 7 (1997) 515-520 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00276-4