MÖSSBAUER STUDY OF AMORPHOUS FeF3, 0.4 HF IN THE MAGNETIC TRANSITION RANGE J. Teillet, A. Hauet and J. M. Greneche J. Phys. Colloques, 49 C8 (1988) C8-1095-C8-1096 DOI: 10.1051/jphyscol:19888502