HYPERFINE FIELDS ON MANGANESE IN IRON-MANGANESE ALLOYS P. COSTA-RIBEIRO, P. RADHAKRISHNA, D. THOULOUZE et Y. ISHIKAWA J. Phys. Colloques, 32 C1 (1971) C1-76-C1-77 DOI: 10.1051/jphyscol:1971121