1. 1) M. Tanaka, K. Takano: “Study of the Practicality on Steel Cutting with Ceramics Tools (3nd Report), Nippon Tungsten Review, (1973) 19-28.
2. 2) M. Furukawa, Y. Hara, T. Kitahira, K. Ogawa: Nippon Tungsten Review, (1976) 45-52.
3. 3) M. Nagano, S. Mouri, S. Sakaguchi, N. Kusunose, K. Niihara: Proceeding of the 19th International Japan Korea Seminar on Ceramics, (2002).
4. 4) M. Nagano, S. Mouri, K. Minamoto, N. Mukae: Proceeding of the 17th International Japan Korea Seminar on Ceramics, (2000).
5. 5) M. Takasu, S. Mitomi: Proceeding of the 18th International Japan Korea Seminar on Ceramics, (2001).