INFLUENCE OF MICROSTRUCTURE ON ACOUSTIC EMISSION ALONG HYSTERESIS LOOP OF POLYCRYSTALLINE FERRIMAGNETS M. Guyot, T. Merceron et V. Cagan J. Phys. Colloques, 49 C8 (1988) C8-1933-C8-1934 DOI: 10.1051/jphyscol:19888874