1. 1) E. J. Dowgiallo and A. F. Burke, Proc., EVS-11, 19-07 (1995).
2. 2) The 6~9th International Seminar on Double Layer Capacitors, and Similar Energy Storage Devices, Deerfield Beach, Florida, Dec. (1996~1999).
3. 3) B. E. Conway, Electrochemical Supercapacitors, Kluwer Academic/Plenum (1999).
4. 4) A. Nishino, Carbon, 132, 57 (1988).
5. 5) K. Hiratsuka, Y. Sanada, T. Morimoto, and K. Kurihara, Denki Kagaku (presently Electrochemistry), 59, 209 (1995).