THE EFFECTS OF ADDITION OF Nb, Mo AND Ga ON THE MAGNETIC PROPERTIES OF Nd-Fe-B ALLOYS Jifan Hu, Yizhong Wang, Xinwen Li, Lin Yin, Minying Feng, Daoyang Dai, Tao Wang, J. G. Zhao et Zhenxi Wang J. Phys. Colloques, 49 C8 (1988) C8-601-C8-602 DOI: 10.1051/jphyscol:19888274