1. 1Y. Takeda, K. Usami, K. Nakamura, S. Ogihara, K. Maeda, T. Miyoshi, S. Shinozaki, M. Ura, M. F. Yan, and A. H. Heuer ; pp, 253 -59 inAdvances in Ceramics , Vol. 7 Edited byThe American Ceramic Society, Columbus, OH, 1983 .
2. 2K. Maeda, T. Miyoshi, Y. Takeda, K. Nakamura, S. Ogihara, M. Ura, M.F. Yan, and A. H. Heuer ; pp.260 -68 inAdvances in Ceramics , Vol. 7 . Edited byThe American Ceramic Society. Columbus. OH, 1983 .
3. Nonmetallic crystals with high thermal conductivity