MAGNETIC EXCITATIONS IN THE INTERMEDIATE VALENCE SYSTEM Sm0.75 Y0.25S H. A. Mook, T. Penney, F. Holtzberg et M. W. ShaferJ. Phys. Colloques, 39 C6 (1978) C6-837-C6-839DOI: https://doi.org/10.1051/jphyscol:19786373