1. R. H. Philp, Jr., R. L. Flurry, and R. A. Day, Jr., J. Electrochem. Soc.,111, 328 (1964).
2. Yu. Kargin, O. Manou?ek, and P. Zuman, J. Electroanal. Chem., 12, 443 (1966).
3. Yu. M. Kagrin, Ya. A. Levin, V. Z. Kondranina, and R. T. Safin, News of the Electrochemistry of Organic Compounds [in Russian], Nauka (1968), p. 38.
4. O. Fischer, K. Kosova, and J. Stepanek, J. Electroanal. Chem.,17, 233 (1968).
5. P. Zuman, O. Manousek, and S. V. Vig, J. Electroanal. Chem.,19, 147 (1968).