1. For example S. Hirano and S. Sōmiya, J. Am. Ceram. Soc., 59 [11, 12] (1976) 534 pp.
2. S. Sōmiya, S. Hirano, M. Yoshimura, S. Itoh, and H. Kanai, in S. Sōmiya, S. Saito (Eds.), Proceedings of the International Symposium on Factors in Densification and Sintering of Oxide and Nonoxide Ceramics, (1979) pp. 267–277, Gakujutsu Bunken Fukyukai, Tokyo 1.
3. M. Yoshimura and S. Sōmiya, Am. Ceram. Soc. Bull., 59 [2] (1980) 246 pp.
4. M. Yoshimura and S. Sōmiya, Advances in Ceramics, Vol. 3 (1981) 455–463.
5. H. Toraya, M. Yoshimura and S. Sōmiya, J. Am. Ceram. Soc., 65 [9] (1982) C-159-C-160.