1. L. Sun, C. C. Berndt, K. Gross, and A. Kucuk, Biomed. Mater. Res. 58, 570 (2001).
2. K. Gross, M. Philips, B. Ben-Nissan, and C. C. Berndt, Bioceramics 11, 177 (1998).
3. M. Manso-Silvan, M. Langlet, C. Jimernez, et al., J. European Ceramic Society 23, 243 (2003).
4. E. N. Antonov, V. N. Bagratashvili, V. K. Popov, et al., Perspekt. Mater. 3, 49 (1996).
5. G. A. Shashkina, Yu. P. Sharkeev, and Yu. R. Kolobov, Perspekt. Mater. 1, 41 (2005).