1. Fisher, P.M. and Evans, L.R. Jr., Whole tyre recycling: the elm energy approach, Rubber Europe Conference Proceedings, No. 6.012, June 1993, pp.1-6.
2. Frederick, W.J. et al., Energy and Materials from Recycled Paper Sludge, AIChE Summer National Meeting, Denver Co., August14-17,1994.
3. Association of Plastics Manufacturers in Europe, Plastics: A Vital Ingredient for the Food Industry, RAPRA Technology, Ltd., 1993, pp.12-30.
4. Richards, M.K., USEPA's evaluation of a texaco gasification technology, Proceedings: ACS Emerging Technologies in Hazardous Waste Management, VI, Atlanta, GA., September 1994, pp.19-21.