1. M.Q. Huang, L.Y. Zhang, B.M. Ma, Y. Zheng, J.M. Elbiciki, W.E. Wallace, and S.G. Sankar: J. Appl. Phys., 1991, vol. 70 (10), pp. 6027–29.
2. W. Rodewald, M. Velicescu, B. Wall, and G.M. Reppel: Proc. 12th Workshop on RE-Magnets and Their Applications, Canberra, Australia, University West Australia, July, 1992, p. 191.
3. W. Rodewald, B. Wall, M. Kntter, M. Velicescu, and P. Schrey: 37th Annual Conference on Magnetism and Magnetic Materials, Houston, TX, 1992, p. CP-13.
4. Satoshi Hirosawa and Yoshiyuki Tsubokawa: J. Magn. Magn. Mater., 1990, vol. 84, pp. 309–16.
5. A. Verma, P. Verma, and R.K. Sidhu: Bull. Mater. Sci., 1996, vol. 19(3), pp. 539–548.