Study of transformation kinetics in the Fe40Ni38Mo4B18 metallic glass by positron annihilation methods Mbungu-Tsumbu, D. Segers, M. Dorikens et L. Dorikens-Vanpraet Rev. Phys. Appl. (Paris), 20 12 (1985) 831-836 DOI: 10.1051/rphysap:019850020012083100