Low-energy magnetic excitations in the Pr metaphosphate glass G. Carini, G. D'Angelo, G. Tripodo, A. Fontana, F. Rossi and G. A. Saunders Europhys. Lett., 40 4 (1997) 435-440 Published online: 01 September 2002 DOI: 10.1209/epl/i1997-00484-4