1. F. Thummler: Application of Sintering Theory in Practice. (Some topics for discussion). 2nd International Round Table Meeting on Sintering, 1971, Herceg-Novi.
2. G. Gessinger, Powder Metallurgy International 1, 15 (1969).
3. Examples for electroceramic materials can be found in
4. A. Broese van Groenou, P. F. Bongers and A. L. Stuijts, Mat. Sci. Engng. 3, 317 (1968/69).
5. G. H. Jonker and A. L. Stuijts, Philips Tech. Rev. 32, 79 (1971).