57Fe AND 61Ni MÖSSBAUER EFFECT INVESTIGATIONS OF NICKEL FERRITE-ALUMINATES J. J. Bara, Z. M. Stadnik, G. Czjzek, J. Fink, V. Oestreich et H. SchmidtJ. Phys. Colloques, 41 C1 (1980) C1-173-C1-174DOI: https://doi.org/10.1051/jphyscol:1980148