1. R. E. REED-HILL, ?Physical Metallurgy Principles? (Van Nostrand, 1970) p. 236.
2. R. E. SMALLMAN, ?Modern Physical Metallurgy? (Butterworths, 1980) p. 405.
3. J. FIDLER and P. SKALICKY, Proceedings of the 3rd International Symposium on Magnetic Anisotropy and Coercivity in RE-TM Alloys, Paper No. S-7 (1982) p. 585.
4. F. ROTHWARFet al., ibid. p. 567.
5. A. KIANVASH and I. R. HARRIS, to be published.