ANISOTROPIES IN ULTRATHIN FILMS OF IRON GROWN ON SILVER J. F. Cochran, B. Heinrich, A. S. Arrott, K. B. Urquhart, J. R. Dutcher and S. T. Purcell J. Phys. Colloques, 49 C8 (1988) C8-1671-C8-1676 DOI: 10.1051/jphyscol:19888761