HYPERFINE FIELDS AT 3d IMPURITIES IN FERROMAGNETIC GdZn AND GdCd Y. Kasamatsu, K. Kojima, T. Hihara et T. KamigaichiJ. Phys. Colloques, 49 C8 (1988) C8-389-C8-390DOI: https://doi.org/10.1051/jphyscol:19888176