EFFECT OF HEAT-TREATMENT ON MAGNETIC HYSTERESIS IN Nd-Fe-B BASED MAGNETS J. Strzeszewski, G. C. Hadjipanayis et A. S. Kim J. Phys. Colloques, 49 C8 (1988) C8-633-C8-634 DOI: 10.1051/jphyscol:19888286