1. Alekseyenko MP (1970) Sov J Opt Technol 37:528
2. Rabinovich EM (1985) J Mater Sci 20:4259
3. Smeets K, Clasen R (2002) In: Lin H-T, Singh M (eds) Proceedings of the 26th Annual Conference on Composites, Advanced Ceramics, Materials and Structures, Cocoa Beach, Florida, USA. The American Ceramic Society, Westerville, p 593
4. Tabellion J, Clasen R (2002) Ceram Eng Sci Proc 23:617
5. Tabellion J, Clasen R (2003) Ceram Eng Sci Proc 24