1. Goto, I., Shimanaka, H., Irie, T., Matsumura, K., Nakamura, H., Shono, Y., in: Proc. 3rd Int. Conf. on Soft Magnetic Materials (Benda, O., Mayer, I., Slama, J., eds.) Bratislava: SVST 1978, p. 472.
2. Shimanaka, H., Irie, T., Matsumura, K., Nakamura, H.: J. Magn. Magn. Mater. 19 (1980) 63.
3. Shimanaka, H., Ito, Y., Matsumura, K., Fukuda, B.: J. Magn. Magn. Mater. 26 (1982) 57.
4. Honma, K., Nozawa, T., Kobayashi, H., Shimoyama, Y., Tachino, I., Miyoshi, K.: IEEE Trans. Magn. 21 (1985) 1903.
5. Matsumura, K., Fukuda, B.: IEEE Trans. Magn. 20 (1984) 1533.