HIGH RESOLUTION NEUTRON SPECTROSCOPY OF THE CROSSOVER IN THE VIBRATIONAL DENSITY OF STATES OF SILICA AEROGELS H. CONRAD, J. FRICKE et G. REICHENAUERJ. Phys. Colloques, 50 C4 (1989) C4-157-C4-162DOI: https://doi.org/10.1051/jphyscol:1989425
