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2. J. Pottier, M. Avallet and M. Mousset, Caracterisation sur Boucle d'Essais d'un Diaphragme en Titanate de Calcium sur Grille de Nickel, report from Gaz de France, private communication (1986).
3. L. Giuffre, G. Modica, E. Montoneri and E. Tempesti, ?Synthesis and Development of Electrolytic Separators for the Electrolysis of Alkaline Water?, see [1] Proc. 3rd Int. Seminar, Lyon, 25?27 May, D. Reidel (1983), p. 320.
4. L. Giuffre, G. Modica, S. Maffi, E. Montoneri and E. Tempesti,Int. J. Hydrogen Energy 5 (1986) 307.
5. H. Wendt and H. Hofmann, ?Composite Diaphragms for Medium Temperature (120?160° C) Water Electrolysis?, see [1] Proc. 3rd Int. Seminar, Lyon, 25?27 May, D. Reidel (1983), p. 286.