Effect of glassy topological disorder on low-energy magnetic excitationsG. Carini, G. D'Angelo, G. Tripodo, A. Fontana, F. Rossi and G. A. SaundersEurophys. Lett., 49 1 (2000) 99-104DOI: https://doi.org/10.1209/epl/i2000-00125-0