1. G. A. KUROV, Soviet Phys.-Solid State, 3, 1512 (1962).
2. E. I. GIVARGIZOV, Soviet Phys.-Solid State, 6, 1415 (1964).
3. S. E. MAYER and D. E. SHEA, J. Electrochem. Soc., 111, 550 (1964).
4. D. W. SHAW, J. Electrochem. Soc., 113, 905 (1966).
5. K. L. DENBIGH, Chemical Reactor Theory, p. 29. Cambridge Univ. Press, London (1965).