Spin wave excitations of Nd in Nd2CuO4 W. Henggeler, T. Chattopadhyay, P. Thalmeier, P. Vorderwisch and A. Furrer Europhys. Lett., 34 7 (1996) 537-542 Published online: 01 September 2002 DOI: 10.1209/epl/i1996-00491-5