MÖSSBAUER STUDY OF COMPOUNDS RCo4-xFexB AND RFe4B Y. Gros, F. Hartmann-Boutron, C. Meyer, M. A. Fremy, P. Tenaud and P. Auric J. Phys. Colloques, 49 C8 (1988) C8-547-C8-548 DOI: 10.1051/jphyscol:19888249