An experimental separation of anharmonic and disorder effects on glassy dynamicsH. E. Fischer, F. J. Bermejo, G. J. Cuello, M. T. Fernández-Díaz, J. Dawidowski, M. Jiménez-Ruiz and H. SchoberEurophys. Lett., 46 5 (1999) 643-648DOI: https://doi.org/10.1209/epl/i1999-00314-9