1. T. Nakashima, T. Tstsumi, I. Takehara, Y. Ichikawa, and H. Kobayashi,Proc. the 6th Int. Symp. on Ceram. Mater. and Components for Engines p. 233, Research & Development of CGT302, Arita, Japan (1997).
2. M. Savitz,Am. Ceram. Soc. Bull. 78, 53 (1999).
3. M. Savitz,Am. Ceram. Soc. Bull. 78, 52 (1999).
4. H. T. Lin and M. K. Ferber,J. Euro. Ceram. Soc. 22, 2789 (2002).
5. H. Klemm,J. Euro. Ceram. Soc. 22, 2735 (2002).