LOW ENERGY EXCITATIONS IN SILICA AEROGELS R. MAYNARD, R. CALEMCZUK, A.M. DE GOER, B. SALCE, J. BON, E. BONJOUR and A. BOURRET J. Phys. Colloques, 50 C4 (1989) C4-107-C4-112 DOI: 10.1051/jphyscol:1989416
