1. Viswanathan, B., Murthy, V.R.K.: Ferrite Materials. Springer Verlag, Berlin (1990)
2. Goldman, A.: Modern Ferrite Technology, 2nd edn. John Wiley, New York (1990)
3. Dasgupta, S., Kim, K.B., Ellrich, J., Eckett, J., Manna, I.: J. Alloys Compds. 424, 13 (2006)
4. Singh, A.K., Verma, A., Thakur, O.P., Prakash, C., Goel, T.C., Mendiratta, R.G.: J. Magn. Magn. Mater. 57, 1040 (2003)
5. Singh, A.K., Singh, A.K., Goel, T.C., Mendiratta, R.G.: J. Magn. Magn. Mater. 281, 276 (2004)