N. M. R. STUDY OF HYPERFINE AND QUADRUPOLE INTERACTIONS IN FERROMAGNETIC GdAl2 N. SHAMIR, N. KAPLAN and J. H. WERNICK J. Phys. Colloques, 32 C1 (1971) C1-902-C1-904 DOI: 10.1051/jphyscol:19711320