1. Metal market statistics,1983
2. Grade and tonnage models of silver, copper, lead and zinc vein deposits of the Couer D'Alene mining district;Anstett,1985
3. More on depletion in the nickel industry;Cairns;Journal of Environmental Economics and Management,1986
4. A model of exhaustible resource exploitation with Ricardian rent;Cairns;Journal of Environmental Economics and Management,1986