1. 1) T. Gutwoski, M. Cynthia, A. David, B. Diana, B. Bert, T. Piwonk, P. Sheng, J. Sutherland, D. Thurston and E. Wolff: WTEC Panel Report on Environmentally Benign Manufacturing (2001).
2. 2) The Society of Non-Tradinational Technology Ecomateriald Forum: Proc. First Int. Conf. ECOMATERIALS (1993, Tokyo, Japan).
3. 3) The Society of Non-Traditional Technology Ecomateriald Forum: Proc. Second Int. Conf. ECOMATERIALS (1995, Xi’an China).
4. 4) The Society of Non-Traditional Technology: Final Report on Life Cycle Assessment Project (1998).
5. 5) The Society of Non-Traditional Technology: Annual Progress Report on the Barrier Free Processing Projects (2000).