MAGNETIC PROPERTIES OF DILUTE RANDOM MAGNETIC ANISOTROPY SYSTEMS (DyxY1-x) Al2 A. del Moral, P. M. Gehring, J. I. Arnaudas et M. B. SalamonJ. Phys. Colloques, 49 C8 (1988) C8-1233-C8-1234DOI: https://doi.org/10.1051/jphyscol:19888559