MÖSSBAUER HYPERFINE FIELDS IN RBa2 (Cu0.97Fe0.03)3O7-x [R = Y, Pr, Er] M. Rubinstein, M. Z. Harford, L. J. Swartzendruber et L. H. BennettJ. Phys. Colloques, 49 C8 (1988) C8-2209-C8-2210DOI: https://doi.org/10.1051/jphyscol:19888992