1. Ferrites;Smit,1959
2. Microwave Ferrites and Ferrimagnetics;Lax,1962
3. Handbook of Ferrite Materials;Von Aulock,1965
4. R.F. Louh, T.G. Reynolds, R.C. Buchanan, in: R.C. Buchanan (Eds.), Ceramic Materials for Electronics, first ed., Marcel Dekker, Inc., New York, 1986, p. 323.