The Effect of Diamagnetic Defect in YIG on the Hyperfine Field Anisotropy J. Kohout, H. Stepankova, J. Englich, P. Novak and H. Lütgemeier J. Phys. IV France, 07 C1 (1997) C1-449-C1-450 DOI: 10.1051/jp4:19971182