矿产价格的长期趋势变化：勘探、枯竭与技术变革之间的持续拉锯战

Variable long-term trends in mineral prices: The ongoing tug-of-war between exploration, depletion, and technological change

• John T. Cuddington · 科罗拉多矿业学院 通讯
• Grant Nülle · 科罗拉多矿业学院