1. [1] Xi. Zhang and H. Lin, IEEE Trans. Magn., vol.19, 1457, 1983.
2. [2] Pran Kishan, Nitendar Kumar and K.K. Jain, Proc. ICF6, 1310, 1992.
3. [3] L.G. Van Uitert., Proc. IRE, vol.44, 1294, 1956.
4. [4] G.F. Dionne, IEEE Trans. Magn., Vol.8, 439, 1972.
5. [5] Pran Kishan, D.R. Sagar, S.N. Chatterjee, L.K. Nagpaul, Nitendar Kumar and K.K. Laroia, Adv. in Ceramics, vol.15, 507, 1986.