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On using current information to value hard-rock mineral properties
Cairns, Robert D., (1998)
The economics of durable exhaustible resources. Mining gold for the currency and optimal real balances. John M. Hartwick
Hartwick, John M., (1989)
Mining survey : a Chamber of Mines publ
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An investigation of the unconditional distribution of South African stock index returns
Beelders, O., (2003)
The optimal extraction of gold from surface dumps
Beelders, O., (1993)