1. P.C. Milner and U. B. Thomas, in ?Advances in Electrochemistry and Electrochemical Engineerings? Vol. 5, Interscience, New York (1967) 59.
2. G. W. D. Briggs, Chemical Society Specialist Periodical Reports, Electrochemistry4 (1974).
3. E. Hausler in ?Power Sources?, Vol. 1, 1966 Research and Development in Non-Mechanical Electrical Power Sources, Edited by D. H. Collins, (1967) p. 287.
4. F. P. Kober,J. Electrochem. Soc. 112 (1965) 1064.
5. D. M. MacArthur,ibid. 117 (1970) 422.