1. “Materials Intensity of GDP,”;Auty;Resources Policy,1985
2. “Benchmark Input-Output Accounts for the U.S. Economy, 1982,”;BEA.;Survey of Current Business,1991
3. “Technology, Prices and the Derived Demand for Energy,”;Berndt;Review of Economics and Statistics,1975
4. “Reflections on the Derived Demand for Metals,”;Campbell;Materials and Society,1986