1. A. Marchand, J.J.C. Counioux, H. Delalu and A. Marichy, US patent, 5, 322,642, June 21, 1994.
2. R. Metz, H. Delalu, J.R. Vignalou, N. Achard, and M. Elkhatib, Materials Chemistry and Physics, 63, 157 (2000).
3. J. Clayton, H. Takamura, R. Metz, H. Tuller, and B. Wuensch, Journal of Electroceramics, 7, 113 (2001).
4. J. B�nard, L?oxydation des m�taux, processus fondamentaux (I) (Gauthier-Villars Publishers, Paris, (1962), pp. 1?322.
5. H. Terem, Chim. Ind., 16, 226 (1951).