INVESTIGATION OF THE DISTRIBUTION AND THE STATE OF SMALL AMOUNT OF RARE EARTH ELEMENTS IN PURE IRON BY THE METHOD OF INTERNAL FRICTION Li Wern-bin, Liu Zheng-qun, Yang Quo-ping, Li Cheng-hsiu et Zhang BinJ. Phys. Colloques, 42 C5 (1981) C5-463-C5-468DOI: https://doi.org/10.1051/jphyscol:1981569
