4) Office of Strategic Assessment and Special Studies, U. S. Environmental Protection Agency : Assessments of Future Environmental Trends and Problems of Increased Use, Recycling, and Combustion of Fiber-Reinforced Plastic and Metal Composite Materials, (1982) 259 ; PB-82-255514.
5) E. Morel, G. Richert and Ch. Martin : Examination of the Possibilities of Reusing Thermosetting Waste of Industrial Origin (Translation from the French), (1982) 63 ; PB 82-156712.