EXCITATIONS IN THE ISING COMPOUND RbFeCl3-2H2O Q.A.G. van Vlimmeren, C.H.W. Swüste et W.J.M. de Jonge. J. Phys. Colloques, 39 C6 (1978) C6-743-C6-744 DOI: 10.1051/jphyscol:19786331