1. J.R. Dieffenbach, “Aluminum Spaceframes Could Cut Auto Costs,” American Metal Market, Supplement (11 November 1992).
2. J.R. Dieffenbach, “Life-Cycle Savings Make a Strong Case For Plastics,” Plastic World (October 1992).
3. K. Kato, and Y. Shiroi, “Effect of Growth Factor on Weight Reduction,” ISATA Conference on Secondary Weight Reduction (Italy: Association Technica Dell’ Automobile, 1992).