1. R.J. Puddephatt, ‘The Chemistry of Gold’, Elsevier, Amsterdam, 1978
2. D.M.P. Mingos,J. Chem. Soc. Dalton Trans., 1996, 561, and references therein
3. M. Faraday,Philos. Trans. Roy. Soc. London, 1857,147, 145
4. ‘Colloidal Gold: Principles, Methods and Applications’, ed. M.A. Hayat, Academic Press, San Diego, 1989, Vol 1
5. See, for example, ‘Clusters and Colloids’, ed. G. Schmid, VCH, Weinheim, 1994