An investigation of amorphous Gd-Ni alloys by Mössbauer spectroscopy G. Czjzek, J. Fink, F. Götz, H. Schmidt, J.P. Rebouillat, A. Liénard et J.M.D. Coey J. Phys. Colloques, 40 C5 (1979) C5-245 DOI: 10.1051/jphyscol:1979589