1. presented at the 27th Meeting of I.S.E.;Motoo,1976
2. presented at the 42nd Annual Meeting of Electrochem. Soc.;Motoo,1975
3. presented at the Japan-U.S.S.R. Seminar on Electrochemistry;Watanabe,1975
4. Electrocatalysis by ad-atoms
5. Electrocatalysis by ad-atoms