1. Bard AJ, Faulkner LR (2001) Electrochemical methods – fundamentals and applications, 2nd edn. John Wiley, New York
2. Dong S, Niu J, Cotton TM (1994) Biochemical spectroscopy. In: Abelson JN, Simon MI (eds) Methods in enzymology. vol 246, Academic Press, Orlando, Florida
3. Broman RF, Heineman WR, Kuwana T (1973) Faraday Discuss Chem Soc 56: 816
4. Aylmer-Kelly AWB, Bewick A, Cantrill PR, Tuxford AM (1973) Faraday Discuss Chem Soc 56: 96
5. Heineman WR, Hawkridge FM, Blount HN (1984) Electroanal Chem 13: 55