1. Energiebilanzen der Bundesrepublik Deutschland,1971
2. Technology assumptions in the construction of UK input-output tables;Armstrong,1971
3. Materials, Engineering and the Economy: An Input-Output Study of Technical Decisions in the United Kingdom;Becker,1975
4. The interdependence of materials and resources in the US economy;Becker;Mater. & Soc.,1977
5. The Energy cost of goods and services;Bullard;Energy Policy,1975