1. M. J. Ruthner, “Preparation and Sintering Characteristics of MgO, Al2O3, MgAl2O4, and MgCr2O4” presented at the Third Round Table Meeting, International Team for Studying Sintering, Herceg-Novy, Yugoslavia, September 3–8, (1973).
2. D. M. Roy, R. R. Neurgaonkar, T. P. O'Holleran andR. Roy,Amer. Ceram. Soc. Bull. 56(11) (1977) 1023.
3. T. J. Gardner, D. W. Sproson andG. L. Messy,Mater. Res. Soc. Symp. Proc. 32 (1984) 227.
4. A. Kato andF. Tokunaga,Funtai Oyobi Funmatsuyakin 24 (8) (1977) 219.
5. Y. Hirata, T. Maeta andA. Kato,Nippon Kagaku Kaishi 10 (1981) 1595.