Journal of Geochemistry: Exploration, Environment and Analysis, Vol. 3, 2003 pp79-84
Keynote paper presented at the Australian Institute of Geoscientists Exploration Conference, Perth March 2003
China Mining Association – Minerals Exploration Branch Annual Conference Kunming, China, December 2002
China Mining Conference, Chongqing, October 2002
China Mining Conference, Xian, Sept 2001
Presented at a workshop for government ministers organized by the World Bank, Washington DC, April 2001.
Energy Journal, Vol. 12(2) 1990 pp135-152