Effect of glassy topological disorder on low-energy magnetic excitations G. Carini, G. D'Angelo, G. Tripodo, A. Fontana, F. Rossi and G. A. Saunders Europhys. Lett., 49 1 (2000) 99-104 Published online: 01 September 2002 DOI: 10.1209/epl/i2000-00125-0