1. P. Schmittinger, L. C. Curlin, T. Asawa, S. Kotowski, B. B. Beer, A. M. Greenberg, E. Zelfel and R. Breitstrade in ?Ullmann's Encyclopedia of Industrial Chemistry?, Vol. 6A, 5th edition, VCH Verlag, Weinheim (1986).
2. D. Pletcher and F. C. Walsh, ?Industrial Electrochemistry?, 2nd edition, Chapman and Hall, London (1990).
3. A. M. Couper, D. Pletcher and F. C. Walsh,Chem. Reviews 90 (1990) 837.
4. M. R. Tarasevich and B. M. Efremov in ?Electrodes of Conductive Metal Oxides, Part A? (edited by S. Trasatti), p. 221. Elsevier, Amsterdam (1984).
5. W. J. King and A. C. C. Tseung,Electrochim. Acta 19 (1974) 485.