1. Akira C and Osamura K 1989Proceedings ICF-5 (Mumbai: Narosa Pub.)
2. Blesa M C, Moran E, Tornero J D, Menendez N, Mata-Zamora E and Saniger J M 1986J. Mater. Sci. Lett. 5 22
3. Culbertson T L and Dunber A 1937J. Am. Chem. Soc. 59 306
4. Cullity B D 1972Introduction to magnetic materials (Reading: Addison-Wesley Publication Co.)
5. Eberhard K and Thomas C A 1998Magnetic recording hand book, technology and applications (eds) M C Denis and D D Eric (New York: McGraw Hill Co.) ch. 3 p. 101